DELRIN® 527UV black

POM-H UV Resistant

Delrin® 527UV BK701 is a black homopolymer acetal that has been enhanced with UV stabilizers. It is also available in natural on a custom run basis. Developed by Delrin USA LLC to replace Delrin® 507, this material is particularly suited to automotive and other outdoor applications. It exhibits improvements in UV aging characteristics and thermal stability. Delrin® is a registered trademark of Delrin USA LLC.

Compliances

Facts

Chemical designation

POM-H (Polyacetal (Homopolymer))

Color

black

Density

1.41 g/cm3

Main Features

very good UV and weather resistance
improved surface hardness
good machinability
very good mechanical strength

Target industries

automotive industry

agricultural machinery

construction industry

solar systems

Downloads

Datasheet (PDF)

Safety Data Sheet (PDF)

Technical details

Mechanical properties

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Mechanical properties	Value	Unit	Condition	Test Method
Tensile strength at yield	10,300	psi	@ 73 °F	ASTM D 638
Elongation at break (tensile test)	15	%	@ 73 °F	ASTM D 638
Modulus of elasticity (tensile test)	420,000	psi	@ 73 °F	ASTM D 638
Flexural strength	13,500	psi	@ 73 °F	ASTM D 790
Modulus of elasticity (flexural test)	490,000	psi	@ 73 °F	ASTM D 790
Impact strength (Izod)	1.25	ftlbsin	@ 73 °F	ASTM D 256
Rockwell hardness	89	-	M Scale	ASTM D 785
Rockwell hardness	120	-	R Scale	ASTM D 785

Thermal properties

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Thermal properties	Value	Unit	Condition	Test Method
Melting temperature	352	F		-
Deflection temperature	325	F	@ 66 psi	ASTM D 648
Deflection temperature	198	F	@ 264 psi	-
Service temperature	185	F	Long Term	-
Thermal expansion (CLTE)	6.1*10^-5	ininF		-

Other properties

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Other properties	Value	Unit	Condition	Test Method
Moisture absorption	0.14	%	@ 24 hrs, 73 °F	ASTM D 570
Flammability (UL94)	HB	-		-