BJB Polyurethane TC-300 A/B 3# Density

About
The TC-300 A/B polyurethane foam system is a series of rigid, closed cell foams available in a variety of densities. The TC-300 can be easily mixed by hand in small batches using a rapid, vigorous mixing action or by using a Jiffy Mixer® in a drill to provide a high-shear mix in small to large quantities. For low to high production, these foam systems can also be machine dispensed using BJB’s Centerpointe Meter-Mix equipment. Cured parts can be sanded, stapled, painted or stained within a short time after demolding. Also available in 6#, 10#, and 16# densities. Easy to hand mix or machine cast Flows well into mold cavities Fast Demolds Excellent physical properties&&

About

The TC-300 A/B polyurethane foam system is a series of rigid, closed cell foams available in a variety of densities. The TC-300 can be easily mixed by hand in small batches using a rapid, vigorous mixing action or by using a Jiffy Mixer® in a drill to provide a high-shear mix in small to large quantities. For low to high production, these foam systems can also be machine dispensed using BJB’s Centerpointe Meter-Mix equipment. Cured parts can be sanded, stapled, painted or stained within a short time after demolding. Also available in 6#, 10#, and 16# densities. Easy to hand mix or machine cast Flows well into mold cavities Fast Demolds Excellent physical properties&&

Product Description
Generic	PUR
Material Status	Commercial: Active
Features	Good Rigidity,Sprayable,Good stripping performance
Availabilitys	North America
Process Methods	Foam treatment

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density
—	1.07	g/cm³
—	1.23	g/cm³
K (wear) coefficient (25 ℃)	0.150		ASTM C177
Density	0.0400 to 0.0561	g/cm³

MECHANICAL	Nominal value	Unit	Test method
tensile strength	0.552	MPa	ASTM D1623
bending strength	0.689	MPa	ASTM D790
compressive strength	0.345	MPa	ASTM D1621

film	Nominal value	Unit	Test method
Water vapor transmittance	1.80	perm/in	ASTM E96

Electrical performance	Nominal value	Test method
Dielectric constant
1 MHz	1.03	ASTM D150
Dissipation factor
1 MHz	2.1E-3	ASTM D150

THERMAL	Nominal value	Unit
Thermosetting components
Component A	按重量计算的混合比: 100, 按容量计算的混合比: 87
Component B	按重量计算的混合比: 100, 按容量计算的混合比: 100
Storage period	26	wk
Thermosetting mixed viscosity
25℃	250	cP
25℃	900 to 1200	cP
Cream Time	40.0 to 50.0	sec
stripping time	30.0 to 45.0	min
Gelation time	2.0 to 4.0	min
Tack Free Time	3.0 to 4.0	min

Supplementary information	Nominal value	Unit	Test method
Closed Cell Content	95	%	ASTM D2856

Notes
1. Typical properties: these are not to be construed as specifications.
2. Part B, 77°F
3. Part A, 77°F
4. Free rise
5. Part B
6. Part A
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