TC-274 A/B Page 1 of 2 Date: 10/12/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-274 A/B
POLYSOFT 2
4 LB FLEXIBLE FOAM
TC-274 A/B PolySoft 2 is a two-component water blown flexible polyurethane foam system. The cured material feels similar to a
medium-firmness furniture cushion. BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors.
Common applications are prototypes, prosthetics, medical training devices, movie special effects props and more. This material is
frequently molded behind flexible polyurethane skin materials such as BJB s FP, F, M, and L line or other BJB elastomers.
TC-274 A/B can be hand mixed, machine dispensed, or mixed with a Jiffy Mixer .
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 50 100
Mix Ratio by volume 43 100
Specific Gravity @ 77 F (25 C) 1.19 1.03
Color Brown Amber
Viscosity (cps) @77 F (25 C) Brookfield 205 1,070
Density (free rise) lbs/ft
3
4
Density (free rise) kg/m
3
64
Cream Time 20 30 seconds
Rise Time 2.5 3 minutes
Tack Free Time 8 10 minutes
Demold Time 15 20 minutes
*The density and processing times listed are derived from a statistical average of long-term testing. We recommend a test mix be
performed before use.
MIXING:
Mixing is best with a high speed drill or air motor with a Jiffy Mixer .
The blade shears the material and provides a thorough mix within the 5
to 8 second periods generally established for achieving a uniform blend.
The material should have a uniform blended appearance. Mixing too
long or not enough can result in poor material performance.
Once mixed, the material should be immediately poured. If too much
time goes by, the foam will rise in the mix container and the batch may
be lost.
When pouring the foam, avoid trying to scrape any material from the
container sidewalls or bottom. Generally, there isn t enough time to do
this and more importantly there may be material that is not well mixed on
the container sides.
MOLD PREPARATIONS :
The mold should be well sealed and released. Foams will seek moisture through release waxes and stick to mold surfaces if an
insufficient seal exists. Sealing can be accomplished by using lacquer or other similar sealers. The mold should be warmed to
between 75- 85 F (24-29 C) prior to casting the first part. Once a mold is heated and cycled it will maintain heat for continued
production.
POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
TC-274 A/B Page 2 of 2 Date: 10/12/2021
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.”
MOLD PREPARATIONS (continued):
Release systems vary in accordance to the type of mold used; however, as a general product we recommend Challenge 95 Release
or a mold release paste wax. As a rule, silicone based releases do not work with either the flexible or rigid foam groups of
materials. The silicone migrates and often causes poor surface conditions. Silicone will also inhibit the adhesion of paints and
over-coatings.
The best molds for production (rather than prototype or limited production parts) are either machined aluminum molds or epoxy
molds. Epoxy molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS :
TC-274 A/B can be removed from the mold within a 15-20 minute timeframe. However, smaller masses will develop lower
exothermic reaction and may require a slightly longer cure time. It is recommended that foam parts be crushed or squeezed after
demolding to remove residual gases remaining in the cell structure. This will help to reduce post shrinkage and aid in reducing
natural odors from the foam part.
NOTE:
The B component should be gently shaken or stirred to re-blend prior to mixing with part A .
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.
When first using the material, a sample should be visually inspected to be sure no crystallization is present. Crystallization of either the
resin or hardener can occur during shipment in cold weather. If the resin appears cloudy or the hardener becomes gummy, the
component should be warmed with the containers open and stirred until the material returns to its proper smooth liquid consistency.
PACKAGING Part A Part B
Quart Kits 1 lbs. 2 lbs.
Gallon Kits 4 lbs. 8 lbs.
5-Gallon Kits 20 lbs. 40 lbs.
55-Gallon Drum Kits 225 lbs. 450 lbs.
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.
WARNING: This product can expose you to chemicals including Diethanolamine, which are known to the State of California
to cause cancer. For more information, go to www.P65Warnings.ca.gov.
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