Flex HE903 User Manual
Product data sheet, Flex he903 modified bitumen adhesive
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Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533
Tel: (610) 916-9500 Fax: (610) 916-9501 www.FlexRoofingSystems.com
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Product Data Sheet
FLEX HE903 MODIFIED BITUMEN ADHESIVE
PRODUCT DESCRIPTION
Flex HE903 Modified Bitumen Membrane Adhesive is a premium, modified and rubberized, cold process,
waterproofing roofing adhesive which contains low solven content compared with conventional cold applied
adhesives. Designed specificallly for adhering Flex SBS Modified Bitumen and asphalt coated membranes to
properly prepared surfaces.
FEATURES AND BENEFITS
· High solids fibered formulation is modified with SBS rubber polymer, resulting in a high strength bond
when used to adhere Flex SBS Modified Bitumen Membranes and other asphalt based roofing sheets.
· Excellent low temperature flexibility. Roofing can be applied under controlled conditions. The hazard
of torch application, as well as hot asphalt fumes and odors, are eliminated.
· Eliminates the hazard of kettle fires around industrial plants.
· Lap strength adhesion properties far exceed the minimum requirements of ASTM D3019.
· It does not require red label solvent identification.
· Low solvent content, thereby eliminating the potential of softening or damaging SBS membranes.
· VOC Compliant.
PHYSICAL PROPERTIES
PACKAGING
5 Gallon Pails:
53 lbs. each
55 Gallon Drums:
527.5 lbs. each
COVERAGE
100 square feet per 1.5 Gallons
Appearnace:
Black Fibrous
Aspalt By Weight
45% (ASTM D4479)
Base:
Selected Asphalts
Flash Point:
105º F (ASTM D3278)
Freezabiltiy:
Will Not Freeze
Lap Peel Strength:
30 lbf/in. min. (ASTM D3019)
Maximum VOC:
250 g/l
Maximum VOS:
2.08 lbs/gal
Solids By Weight
80% +/- 2% (ASTM D4479)
Specific Gravity @ 77º F (25º C):
1.2
Stormer Viscosity:
60-80 (ASTM D4479)
Weight Per Gallon:
9.9-10.4 (ASTM D1475)