Safety Data Sheets | Revchem Composites

81XR28A-2_SDS.pdf

by | Sep 27, 2025

SAFETY DATA SHEET
Last Revised: 03JAN22

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME: ……………………………………… PRO-SET

XR28A Resin
APPLICABLE PRODUCT CODE S: ………………. XR28A, XR28A-1, XR28A-2, XR28A-4
CHEMICAL FAMILY: ………………………………….. Epoxy resin mixture.
INTENDED PRODUCT USES: ……………………… Fire retardant resin applications.
PRODUCT RESTRICT IONS: ……………………….. Use product only for intended uses as listed. Export restrictions.
SDS VERSION: …………………………………………. XR28A-2022a

MANUFACTURER: EMERGENCY TELEPHONE NUMBERS (24 HRS):
Gougeon Brothers, Inc. Transportation
100 Patterson Ave. CHEMTREC: ……………….. 800-424-9300 (U.S.)
Bay City, MI 48706, U.S.A. 703-527-3887 (International)
Phone: 888-377-6738 or 989-684-7286
www.prosetepoxy.com

2. HAZARDS IDENTIFICATION

Classification of Substance or Mixture

Skin corrosion/irritation, Category 2
Skin sensitizer, Category 1
Eye damage/irritation, Category 2A
Germ cell mutagenicity, Category 1B
Reproductive toxicity, Category 2
Chronic aquatic toxicity, Category 2

Label Elements

Hazard Pictogram(s):

Signal Word:
DANGER

Hazard Statements:
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H319 Causes serious eye irritation
H340 May cause genetic defects
H361 Suspected of damaging fertility or the unborn child
H411 Toxic to aquatic life with long lasting effects

Precautionary Statements:
Prevention
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood
P261 Avoid breathing dust/fume/gas/mist/vapors/spray.
P264 Wash hands thoroughly after handling.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Response
P302 + P352 IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
P308 + P313 If exposed or concerned: Get medical attention/advice.
P333 + P313 If skin irritation or rash occurs: Get medical attention/advice.
P337 + P313 If eye irritation persists: Get medical attention/advice.
P362 + P364 Take off contaminated clothing and wash it before re-use.
P391 Collect spillage.
Storage
P405 Store locked up.
Disposal
P501 Dispose of contents/container in accordance with local, regional and international regulations.

Other Hazards

PRO-SET

XR28A Resin
Page 2 of 6 Last Revised: 03JAN22
None known.

3. COMPOSITION/INFORMATION ON HAZARDOUS INGREDIENTS

INGREDIENT NAME CAS # CONCENTRATION (%)
Propane, 2,2-bis[p-(2,3-epoxypropoxy)phenyl]-, polymers 25085-99-8 60-100
Oxirane, 2,2′[(2,2-dimethyl-1,3-propanediyl)bis(oxymethylene)]bis- 17557-23-2 10-30
Dimethyl methylphosphonate 756-79-6 1-10
The exact chemical identity and/or exact percentage (concentration) of each ingredient may be held as confidential business information
(CBI). Any ingredient not disclosed in this section may have been determined not to be hazardous to health or the environment, or it may
be present at a level below its disclosure threshold.

4. FIRST AID MEASURES

FIRST AID FOR EYES ……………………………………………………………… SYMPTOMS: Causes serious irritation and redness. RESPONSE: Flush
immediately with water for at least 15 minutes. Remove contact lenses if present and easy to do. Consult a physician as precautionary measure.

FIRST AID FOR SKIN ………………………………………………………………. SYMPTOMS: Causes skin irritation. May cause allergic skin reaction and
sensitization. RESPONSE: Remove contaminated clothing. Wipe excess from skin. Apply waterless skin cleaner and then wash with soap and
water. Consult a physician if effects occur.

FIRST AID FOR INHALATION…………………………………………………… SYMPTOMS: Not a likely route of exposure under normal conditions of use.
RESPONSE: Remove to fresh air if respiratory irritation occurs and keep comfortable for breathing.

FIRST AID FOR INGESTION …………………………………………………….. SYMPTOMS: No acute adverse health effects expected from amounts
ingested under normal conditions of use. RESPONSE: Seek medical advice.

5. FIRE FIGHTING MEASURES

EXTINGUISHING MEDIA: ………………………………………………………… SUITABLE: Foam, carbon dioxide (CO2), dry chemical. NON-SUITABLE:
Direct water stream.

FIRE AND EXPLOSION HAZARDS: ………………………………………….. During a fire, smoke may contain the original materials in addition to
combustion products of varying composition which may be toxic and/or irritating. Combustion products may include, but are not limited to:
phenolics, carbon oxides, phosphorous oxides.

SPECIAL FIRE FIGHTING PROCEDURES: ………………………………… Wear a self-contained breathing apparatus and complete full-body personal
protective equipment. Closed containers may rupture (due to buildup of pressure) when exposed to extreme heat.

6. ACCIDENTAL RELEASE MEASURES

EMERGENCY PROCEDURES: …………………………………………………. Keep unnecessary and unprotected personnel from entering area. Use
appropriate safety and personal protective equipment as indicated in Section 8.

MITIGATION AND CLEAN UP PROCEDURES: …………………………… Stop leak without additional risk. Isolate area. Dike and absorb with inert
material (e.g., sand) and collect in a suitable, closed container. Warm, soapy water or non-flammable, safe solvent may be used to clean residual.

ENVIRONMENTAL PRECAUTIONS: ………………………………………….. Prevent from entering into soil, ditches, sewers, waterways and
groundwater. See Section 12 for environmental impact information.

7. HANDLING AND STORAGE

STORAGE TEMPERATURE (min./max.): …………………………………… 40 F (4 C) / 120 F (49 C)

STORAGE: …………………………………………………………………………….. Store in cool, dry place. Store in tightly sealed containers to prevent
moisture absorption and loss of volatiles. Excessive heat over long periods of time will degrade the resin.

HANDLING PRECAUTIONS: ……………………………………………………. Avoid all skin and eye contact. Wash thoroughly after handling. Launder
contaminated clothing before reuse. Avoid inhalation of vapors from heated product. Precautionary steps should be taken when curing product in
large quantities. When mixed with epoxy curing agents this product causes an exothermic, which in large masses, can produce enough heat to
damage or ignite surrounding materials and emit fumes and vapors that vary widely in composition and toxicity.

8. EXPOSURE CONTROLS/PERSONAL PROTECTION

ENGINEERING CONTROLS: ……………………………………………………. Use with adequate general ventilation and/or local ventilation to keep
exposures below established limits.

EYE PROTECTION GUIDELINES: …………………………………………….. Safety glasses with side shields or chemical splash goggles.

PRO-SET

XR28A Resin
Page 3 of 6 Last Revised: 03JAN22
SKIN PROTECTION GUIDELINES: ……………………………………………. Wear liquid-proof, chemical resistant gloves (nitrile-butyl rubber, neoprene,
butyl rubber or natural rubber) and full body-covering clothing.

RESPIRATORY PROTECTION GUIDELINES: …………………………….. When ventilation cannot be made adequate enough to keep exposures
below established limits, use a NIOSH approved respirator with an organic vapor cartridge, or organic vapor cartridge + P100 particulate filter,
depending on specific workplace conditions. Consult with your respirator and cartridge supplier to ensure proper selection of respirator and
cartridge based on ingredients listed in Section 3 and specific workplace conditions. Use and select a respirator according the guidelines
established in OSHA 1910.134 or other applicable respiratory protection standard.

ADDITIONAL PROTECTIVE MEASURES: ………………………………….. Practice good caution and personal cleanliness to avoid skin and eye
contact. Avoid skin contact when removing gloves and other protective equipment. Wash thoroughly after handling. Generally speaking, working
cleanly and following basic precautionary measures will greatly minimize the potential for harmful exposure to this product under normal use
conditions.

OCCUPATIONAL EXPOSURE LIMITS: ……………………………………… Exposure limits may not be established for this product as a whole. For
established exposure limits of specific ingredients in this product, or other available exposure limit information, refer to the table below.

Ingredient Name CAS# Exposure Limit Information
Propane, 2,2-bis[p-(2,3-epoxypropoxy)phenyl]-, polymers 25085-99-8 No data available.
Oxirane, 2,2′[(2,2-dimethyl-1,3-
propanediyl)bis(oxymethylene)]bis-
17557-23-2 No data available.
Dimethyl methylphosphonate 756-79-6 No data available.

9. PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL FORM: ………………………………………………………………….. Viscous liquid.
COLOR: ………………………………………………………………………………… Colorless.
ODOR: …………………………………………………………………………………… Mild.
ODOR THRESHOLD: ………………………………………………………………. No data available
pH …………………………………………………………………………………………. No data available
MELTING POINT / FREEZING POINT ………………………………………… No data available
BOILING POINT (760mm/Hg): ………………………………………………….. >400 F (204

C) Estimated based on ingredient data.
FLASH POINT: ……………………………………………………………………….. >200 F (93

C) Based on ASTM D92 test results from similar product.
AUTO IGNITION TEMPERATURE ……………………………………………… No data available
LOWER EXPLOSIVE LIMIT (LEL) ……………………………………………… No data available
UPPER EXPLOSIVE LIMIT (UEL) ……………………………………………… No data available
VAPOR PRESSURE ………………………………………………………………… No data available
SPECIFIC GRAVITY/DENSITY (water = 1)………………………………….. 1.14
BULK DENSITY………………………………………………………………………. 9.49 lbs./gal. (1.14 kg/L)
VAPOR DENSITY (air = 1) ……………………………………………………….. < 1 mmHg@ 20 C. Estimated based on ingredient data. EVAPORATIOIN RATE (Butyl Acetate = 1) ....................................... No data available WATER SOLUBILITY (% BY WT.) ..................................................... No data available PARTITION COEFFICIENT, n-OCTANOL/WATER (log Pow) ............ No data available KINEMATIC VISCOSITY: ................................................................... 478 mm 2 /s @ 20 C DECOMPOSITION TEMPERATURE : ................................................. No data available. % VOLATILE BY WEIGHT: ................................................................ ASTM D 2369-07 was used to determine the Volatile Content of mixed epoxy resin and hardener. Refer to the hardener SDS for information about the total volatile content of the resin/hardener system. 10. STABILITY AND REACTIVITY STABILITY: ........................................................................................ Product is stable at normal temperatures and pressures. REACTIVITY/HAZARDOUS REACTIONS: ......................................... Product will not react by itself. A mass of more than one pound of product plus an aliphatic amine will cause irreversible polymerization with significant heat buildup. Strong acids, bases, amines and mercaptans can cause polymerization. INCOMPATIBILITIES: ........................................................................ Strong acids, bases, amines and mercaptans can cause polymerization. External heating or self-heating could result in rapid temperature increase and pressure build up. If such a condition were to occur in a drum, the drum could expand and rupture violently. CONDITIONS TO AVOID: .................................................................. Avoid excessive heat. DECOMPOSITION PRODUCTS: ........................................................ Carbon oxides, phosphorous oxides and phenolics may be produced during uncontrolled exothermic reactions or when otherwise heated to decomposition. 11. TOXICOLOGICAL AND HAZARD ENDPOINT INFORMATION Component Name CAS# LD50 Oral LD50 Dermal LC50 Inhalation Propane, 2,2-bis[p-(2,3-epoxypropoxy)phenyl]-, polymers 25085-99-8 >15,000 mg/kg
(rat)
>23,000 mg/kg
(rabbit)
No data
Oxirane, 2,2′[(2,2-dimethyl-1,3-
propanediyl)bis(oxymethylene)]bis-

17557-23-2

4500 mg/kg

>2000 mg/kg

No data
Dimethyl methylphosphonate 756-79-6 >5000 mg/kg 4640 mg/kg >2.59 mg/l 4h

PRO-SET

XR28A Resin
Page 4 of 6 Last Revised: 03JAN22

ACUTE TOXICITY: ………………………………………………………………….. No specific toxicity data exists for this mixture. Classification is
based on acute toxicity estimation methods using ingredient data.
Oral: ……………………………………………………………………….. Not classified. Does not meet acute oral toxicity criteria.
Dermal: …………………………………………………………………… Not classified. Does not meet acute dermal toxicity criteria.
Inhalation:………………………………………………………………… Not classified. Does not meet acute inhalation toxicity criteria. If product is
heated, vapors generated can cause headache, nausea, dizziness and possible respiratory irritation if inhaled in high concentrations.

SKIN CORROSION / IRRITATION: …………………………………………….. Causes skin irritation Category 2.

SERIOUS EYE DAMAGE / IRRITATION :…………………………………….. Causes serious eye irritation. Category 2A.

RESPIRATORY SENSITIZATION : ……………………………………………… Not classified. Does not meet criteria for respiratory sensitizer.
Repeated exposure to high vapor concentrations may cause irritation of pre-existing lung allergies and increase the chance of
developing allergy symptoms to this product.

SKIN SENSITIZATION:…………………………………………………………….. May cause allergic skin reaction. Category 1.

REPRODUCTIVE TOXICIT Y: …………………………………………………….. Suspected of damaging fertility or the unborn child. Category 2.

Diglycidyl ether bisphenol-A, in animal studies, has been shown not to interfere with reproduction. Diglycidyl ether bisphenol-A did not cause birth
defects or other adverse effects on the fetus when pregnant rabbits were exposed by skin contact, the most likely route of exposure, or when
pregnant rats or rabbits were exposed orally.

Dimethyle methylphosphonate has been shown to cause impairment of fertility in laboratory animal studies. Suspected human reproductive
toxicant. Paternal Effects: Spermatogenesis (including genetic material, sperm morphology, motility, and count). Effects on Fertilitiy: Male fertility
index (Ex. number of males impregnating females per number of males exposed to fertile non-pregnant females).

MUTAGENICITY: …………………………………………………………………….. May cause genetic defects. Category 1B.

Dimethyl methylphosphonate showed mutagenic effects in in vivo testing. The substance was not mutagenic in bacteria. The substance was
mutagenic in a mammalian cell culture test system. The substance was mutagenic in studies with mammals.

Diglycidyl ether bisphenol-A in animal mutagenicity studies were negative. In vitro mutagenicity tests were negative in some cases and positive in
others.

CARCINOGENICITY: ……………………………………………………………….. Suspected of causing cancer. Category 2.

Many studies have been conducted to assess the potential carcinogenicity of diglycidyl ether of bisphenol-A. Although some weak evidence of
carcinogenicity has been reported in animals, when all of the data are considered, the weight of evidence does not show that Diglycidyl ether
bisphenol-A is carcinogenic. Indeed, the most recent review of the available data by the International Agency for Research on Cancer (IARC) has
concluded that Diglycidyl ether bisphenol-A is not classified as a carcinogen.

Epichlorohydrin, an impurity in this product (<5 ppm) has been reported to produce cancer in laboratory animals and to produce mutagenic changes in bacteria and cultured human cells. It has been established by the International Agency for Research on Cancer (IARC) as a probable human carcinogen (Group 2A) based on the following conclusions: human evidence inadequate; animal evidence sufficient. It has been classified as an anticipated human carcinogen by the National Toxicology Program (NTP). Note: It is unlikely that normal use of this product would result in measurable exposure concentrations to this substance. SPECIFIC TARGET ORGAN TOXICITY (Single Exposure): .............. Not classified. Does not meet STOT SE criteria. SPECIFIC TARGET ORGAN TOXICITY (Repeated Exposure): ........ Not classified. Does not meet STOT RE criteria. ASPIRATION HAZARD : ..................................................................... Not classified. Does not meet aspiration toxicity criteria. OTHER HEALTH HAZARD INFORMATION : ...................................... Excessive inhalation of a high concentration of vapors may cause slight respiratory irritation. 12. ECOLOGICAL INFORMATION ACUTE AQUATIC TOXICITY :............................................................. No specific test data available for the mixture. Calculated Estimate: Does not meet acute aquatic toxicity requirements. CHRONIC AQUATIC TOXICITY : ........................................................ No specific test data available for the mixture. Calculated Estimate: Aquatic Chronic Category 2. PERSISTANCE AND BIODEGRADABILITY : ..................................... No specific test data available for the mixture. MOBILITY IN SOIL: ............................................................................ No specific test data available for the mixture. ADDITIONAL ECOTOXICITY INFORMATION : ................................... In the liquid, uncured state, this product may be harmful to aquatic life long lasting effects. Prevent release to the environment, sewers and natural waters. Ingredient CAS# Ecotoxicity Classification PRO-SET XR28A Resin Page 5 of 6 Last Revised: 03JAN22 Information Propane, 2,2-bis[p-(2,3-epoxypropoxy)phenyl]-, polymers 25085-99-8 Aquatic Chronic Cat. 2 Oxirane, 2,2'[(2,2-dimethyl-1,3-propanediyl)bis(oxymethylene)]bis- 17557-23-2 Not classified. Dimethyl methylphosphonate 756-79-6 Not classified. 13. DISPOSAL CONSIDERATIONS WASTE DISPOSAL METHOD: ........................................................... Evaluation of this product using RCRA criteria shows that it is not a hazardous waste, either by listing or characteristics, in its purchased form. It is the responsibility of the user to determine proper disposal methods. Incinerate, recycle (fuel blending) or reclaim may be preferred methods when conducted in accordance with federal, state and local regulations. 14. TRANSPORTATION INFORMATION US DOT UN NUMBER: ..................................................................................... Not regulated. SHIPPING NAME: ............................................................................... Not applicable. TECHNICAL SHIPPING NAME : .......................................................... Not applicable. HAZARD CLASS: ................................................................................ Not applicable. PACKING GROUP: ............................................................................. Not applicable. CANADA TDG UN NUMBER: ..................................................................................... Not regulated. SHIPPING NAME: ............................................................................... Not applicable. TECHNICAL SHIPPING NAME: .......................................................... Not applicable. HAZARD CLASS: ................................................................................ Not applicable. PACKING GROUP: ............................................................................. Not applicable. ICAO/IATA UN NUMBER: ..................................................................................... UN 3082. SHIPPING NAME: ............................................................................... Environmentally hazardous substance, liquid, n.o.s. TECHNICAL SHIPPING NAME: .......................................................... Epoxy Resin. HAZARD CLASS: ................................................................................ Class 9. PACKING GROUP: ............................................................................. PG III. MARINE POLLUTANT: ....................................................................... Yes IMDG UN NUMBER: ..................................................................................... UN 3082. SHIPPING NAME: ............................................................................... Environmentally hazardous substance, liquid, n.o.s. TECHNICAL SHIPPING NAME: .......................................................... Epoxy Resin. HAZARD CLASS: ................................................................................ Class 9. PACKING GROUP: ............................................................................. PG III. EmS Number: .................................................................................... F-A, S-F MARINE POLLUTANT ........................................................................ Yes 15. REGULATORY INFORMATION COUNTRY INVENTORY LIST STATUS United States TSCA All ingredients are listed or otherwise compliant. Europe EINECS or ELINCS All ingredients are listed or otherwise compliant. Canada CEPA (DSL/NDSL) All ingredients are listed or otherwise compliant. Australia AICS All ingredients are listed or otherwise compliant. Japan ENCS All ingredients are listed or otherwise compliant. South Korea KECI All ingredients are listed or otherwise compliant. China IECSC All ingredients are listed or otherwise compliant. Philippines PICCS All ingredients are listed or otherwise compliant. New Zealand NZIoC All ingredients are listed or otherwise compliant. US EPA TSCA Specific Requirements: ............................................ No data available. Canada WHMIS Confidential Business Information (CBI): .............. No data available. US EPA SARA TITTLE III Reporting and Notification Requirements: Subject to Section 302 (TPQ) ..................................................... No data available. Subject to Section 304 (RQ) ........................................................ No data available. Subject to Section 311 or 312 ..................................................... Refer to the health and physical classifications in Section 2. Subject to Section 313 ................................................................ No data available. STATE REGULATORY INFORMATION: Chemicals listed below may be specifically regulated by individual states. For details on state regulatory requirements you should contact the appropriate state agency. PRO-SET XR28A Resin Page 6 of 6 Last Revised: 03JAN22 COMPONENT NAME /CAS NUMBER STATE CODE Epichlorohydrin 106-89-8 < 5ppm 1 CA Dimethyl methylphosphonate 756-79-6 PA, NJ 1. These substances are known to the state of California to cause cancer or reproductive harm, or both. 16. OTHER INFORMATION REASON FOR ISSUE:........................................................................ Approval date change. PREPARED BY: ................................................................................. Gougeon Brothers, Inc. SDS CONTACT: ................................................................................. safety@gougeon.com TITLE: ................................................................................................ Health, Safety & Environmental Manager APPROVAL DATE: ............................................................................ January 3, 2022 SUPERSEDES DATE: ........................................................................ January 15, 2019 SDS VERSION: .................................................................................. XR28A-2022a OTHER HAZARD INFORMATION AND RATING SYSTEMS : HMIS RATING NFPA 704 CODES HEALTH: 2 FLAMMABILITY: 1 PHYSICAL HAZARD: 1 PERSONAL PROTECTION: Approximate HMIS and NFPA Risk Ratings Legend: 0 = Low or None; 1 = Slight; 2 = Moderate; 3 = Serious; 4 = Severe Information in this document is furnished without warranty, expressed or implied, except that it is accurate to the best knowledge of Gougeon Brothers, Inc. The data on this sheet is related only to the specific material designated herein. Gougeon Brothers, Inc. assumes no legal responsibility for use or reliance upon these data. 2 1 1

81XR28A-1_SDS.pdf