TC-802 A/B Page 1 of 2 Date: 04/20/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-802 A/B
73 SHORE D POLYURETHANE CASTING SYSTEM
TC-802 A/B is an easy to use rigid urethane casting material. TC-802 A/B is an extremely low viscosity system with
quick demold times. This system also exhibits good physical and heat capabilities. In addition, this system is
economically priced. The one-to-one volume ratio makes it perfect for use with dispensing equipment. TC-802 A/B is a
great product when ABS-type parts with a quick turnaround are required.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 73 2
Density (g/cc) ASTM D792-00 1.06
Cubic Inches per Pound N/A 26.5
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 4,180
Tensile Modulus (psi) ASTM D638-03 1.32 x 10
5
Elongation (%) ASTM D638-03 40
Flexural Strength (psi) ASTM D790-03 5,975
Flexural Modulus (psi) ASTM D790-03 1.48 x 10
5
Shrinkage (in/in) linear 12 x x 0.006
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.42
Heat Deflection Temperature @ 66 psi ASTM D648-04 177 F (80.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 147 F (63.9 C)
Note: Reported physical properties based on elevated temperature cured test specimens.
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 90
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.10 0.99
Color Pale Yellow Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 40 120
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 80
Work Time, 100g mass @ 77 F (25 C) 1.5 minutes
Demold Time @ 77 F (25 C) 10 minutes
Properties above are typical and not for specifications.
TC-802 A/B Page 2 of 2 Date: 04/20/2021
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 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.
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 2 lbs. 1.8 lbs. 101
Gallon Kits 8 lbs. 7.2 lbs. 403
5-Gallon Kits 40 lbs. 36 lbs. 2,014
55-Drum Kits 400 lbs. 360 lbs. 20,140
SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated 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.
Refer to the Material Safety Data Sheet before using this product.
Handling Guide