SK Chemicals SARAN™ 540-CX Vapor Retarder Tape

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SK Chemicals SARAN™ 540-CX Vapor Retarder Tape (discontinued **)
Categories:	Polymer; Adhesive
Material Notes:	SARAN™ 540-CX Vapor Retarder Film is composed of a film of the barrier polymer polyvinylidene chloride (PVDC) coextruded with other specialty polymers that provide strength and support. Working together, the portions of this coextruded film combine to create a vapor retarder and jacketing material for mechanical insulation systems that is durable, flexible and has excellent resistance to water vapor penetration. SARAN 540-CX Film is designed specifically to help prevent water absorption and strongly resist moisture vapor drive into the insulation. A permeance rating of 0.02 perms meets or exceeds standard industry requirements for vapor retarders in cold service. SARAN 540-CX Vapor Retarder Film is not a known nutrient source for mold or mildew. Applications: SARAN 540-CX Vapor Retarder Film is a high-performance, cost effective vapor retarder used in many pipe insulation applications. Typical applications for SARAN 540 CX Film include: Food and beverage facilities Chilled water piping and HVAC systems Transport pipelines Chemical condensation tanks Cold storage systems Refrigerated transport Pharmaceutical plants Petrochemical plants SK Global Chemical has purchased the SARAN® resin business from Dow.
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Physical Properties	Original Value	Comments

Water Vapor Transmission	0.0650 g/100 in²/day @Temperature 37.8 °C	90% RH; ASTM F1249
Thickness	4.00 mil	ASTM D374

Mechanical Properties	Original Value	Comments
Film Tensile Strength at Yield, MD	2150 psi	Ultimate; ASTM D882
Film Tensile Strength at Yield, TD	1890 psi	Ultimate; ASTM D882
Film Elongation at Yield, MD	291 %	Ultimate; ASTM D882
Film Elongation at Yield, TD	242 %	Ultimate; ASTM D882
2% Secant Modulus	71700 psi	MD; ASTM D822
	72300 psi	TD; ASTM D822

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	121 °C
Minimum Service Temperature, Air	-40.0 °C
Flame Spread Index	10	ASTM E84
Shrinkage	>= 1.0 % @Temperature 100 °C	Unrestrained, Air, MD
	>= 1.0 % @Temperature 100 °C	Unrestrained, Air, TD

Descriptive Properties
Color	White
Mullen Burst Strength	75 lbs/in²	ASTM D774
Permeance	0.02	ASTM E96
Surface Burning Characteristics	20	Smoke Developed, ASTM E84
Ultimate Tensile Strength	8 lb/in	width, TD, ASTM D882
	9 lb/in	width, MD, ASTM D882
Yield	39.2 ft²/lb

**
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