DMS 2221 TYPE 1 DMQR 176C (88)

Silicone, Elastomer

GRADE		10	20	30	40	50	60	70	ASTM
As Received
Hardness, Type A Durometer	± 5 pts	10	20	30	40	50	60	70	D 2240
Tensile Strength	psi Min.	200	800	1000	1000	1100	1100	1100	D 412
Elongation, Ultimate	% Min	600	600	600	500	500	400	400	D 412
Tensile Stress at 400% (or as qualified) Elongation +/-25%	psi								D 412
Tear Resistance, Die B with Grain	ppi Min.	25	100	140	140	140	140	160	D 624

Density gm/cm3	Qual Value ±0.03								D 297
Burn Resistance: DMS 1505 Requirements	Pass								DMS 1505
Compression Set -
After 22 ± 0.5 hrs at 302 ± 5°F (150 ± 3°C)
25% deflection	% Max.	40	40	40	40	40	40	40
Oven Aging									D 573
22 ± 0.5 hours at 395 ±9°F (200 ± 5°C)
Change in Hardness	+5,-0 pts
Change in Tensile Strength (1)	% Max	-15	-15	-15	-10	-10	-15	-15
Change in Elongation	% Max	-10	-10	-15	-15	-15	-20	-20
DMS 2014, Type 4, Class 2
22 ± 0.5 hours at 158 ± 2°F
Change in hardness	pts	+0,-5	+0,-10	+0,-10	+0,-10	+0,-10	+0,-10	+0,-10
Change in Volume	%	+15,-0	+15,-0	+15,-0	+15,-0	+15,-0	+15,-0	+15,-0
ASTM No,1 Oil
22 ± 0.5 hours at 302 ± 5°F (150 ± 3°C)
Change in hardness	pts	+0,-5	+0,-10	+0,-10	+0,-10	+0,-10	+0,-10	+0,-10
Change in Volume	%	+15,-0	+15,-0	+15,-0	+15,-0	+15,-0	+15,-0	+15,-0
Water; 22 ± 0.5 hours at 212 ± 5°F (100°± 3°C)
Change in Volume	% +5,-0
Low Temperature Brittleness 10 minutes at -80°F (-62°C)	No Breaks or Cracks								D 2137 Method A
Corrosion of Metal									See Para. 4.5.1