F-170 REV 1 A/B Page 1 of 2 Date: 01/12/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
SHORE A FLEXIBLES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
F-170 REV 1 A/B
70 SHORE A POLYURETHANE ELASTOMER
BJB s F-1 Series , with its 3 to 10 minutes of work time, addresses the need for shorter processing times and higher part
production. These 5 to 95 Shore A products exhibit excellent physical properties and easily process at room temperature. You ll
also find the easy mix ratio to be extremely convenient and cartridge dispense friendly. For longer work times consider our M
Series (10 to 20 min) or L Series (20 min plus) of elastomers.
RoHS/REACH Compliant Popular for Parts & Molds High Tensile & Tear Strength
Special Effects & Props Over Molding Mercury/Phthalate Free
PHYSICAL PROPERTIES TEST METHOD
ELEVATED TEMPERATURE
CURE*
Hardness, Shore A ASTM D2240-04e1 70 5
Density (g/cc) ASTM D792-00 1.09
Cubic Inches per Pound N/A 26
Color/Appearance Visual Translucent Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 1,803
Tensile Modulus (psi) ASTM D412-98a(2002)e1 405
Elongation (%) ASTM D412-98a(2002)e1 1,147
Tear Strength (pli) ASTM D624-00e1 245
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0025
Dielectric Constant, 1 MHz ASTM D150-87 4.987
Dissipation Factor, 1 MHz ASTM D150-87 0.043
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 50 100
Mix Ratio by volume (cartridge dispense friendly) 47 100
Specific Gravity @ 77 F (25 C) 1.12 1.04
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 730 1,255
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,120
Work Time, 100g mass @ 77 F (25 C) 5 6 minutes
Gel Time 6 7 minutes
Demold Time @ 77 F (25 C) 2 3 hours
Properties above are typical and not for specifications.
F-170 REV 1 A/B Page 2 of 2 Date: 01/12/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING :
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
ACCESSORIES:
BJB offers silicone RTV mold making materials along with a wide range of accessory items. These include de-airing agents, pigments,
mold releases, and Jiffy
Mixers. Visit BJB s website at www.bjbenterprises.com or consult a BJB representative for more
information.
COLOR VARIATIONS :
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the
cured physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured
system. Color stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter
pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that
will help slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 1 lb. 2 lbs. 78
Gallon Kits 4 lbs. 8 lbs. 312
5-Gallon Kits 20 lbs. 40 lbs. 1,560
55-Gallon Drum Kits 220 lbs. 440 lbs. 17,160
SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeat or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if
allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
WARNING: This product can expose you to chemicals including Naphthalene, which is known to the State of California to
cause cancer. For more information, go to www.P65Warnings.ca.gov.
Refer to the Material Safety Data Sheet before using this product.
Handling Guide