Product Description
PRODUCT DESCRIPTION:
LY-2771 A/B is an integral skinning, 4 lb medium density, water blown flexible foam. This system does not contain MOCA or toluene
diisocyanate and is practically odorless. LY-2770 A/B contains no HCFC and is environmentally safe. Skin thickness is controlled by
material and mold temperature, and the loading of the mold. BJB pigments may be added to the "B" side for developing a wide range
of colors. LY-2771 A/B can be hand mixed, machine dispensed, or mixed with a Jiffy Mixer.
TYPICAL PRODUCT USES:
Bumpers/crash pads
Movie props/special effects devices
HANDLING PROPERTIES:
Mix Ratio (by weight):
For firmer high resilient foam:
Part A................................................................................................................................................................./ parts by weight
Part B.............................................................................................................................................................../ parts by weight
Mix Ratio (by weight):
For slightly softer foam:
Part A................................................................................................................................................................./parts by weight
Part B.............................................................................................................................................................../ parts by weight
Density (free rise).............................................................................................................................................................4 lb per cubic foot
Specific Gravity:
Part A........................................................................................................................................................................................1.15
Part B........................................................................................................................................................................................1.03
Viscosity, (cps) @ 77F (25°C) Brookfield:
Part A.........................................................................................................................................................................................425
Part B......................................................................................................................................................................................2,250
Mix Time................................................................................................................................................................................./ seconds
Cream Time @ 77°F (25°C).................................................................................................................................................../ seconds
Rise Time.................................................................................................................................................................................80-90 seconds
Demold Time...........................................................................................................................................................................20-30 minutes
STORAGE:
Store in a cool dry place. Unopened containers will have a shelf life of 6 months from date of shipment when properly stored at room
temperatures. Purge opened containers with dry nitrogen before re-sealing.
NOTE:
The "B" component should be gently shaken or stirred to re-blend prior to mixing with part "A".
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