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GacoFlex® NF621

1 of 12 products in this brand
GacoFlex® NF621 is a specially formulated neoprene elastomeric material that cures in place to form a durable, watertight membrane with excellent resistance to naturally occurring ultra-violet light and ozone, temperature variations, weathering, and most chemicals.

Polymer Name: Chloroprene Rubber (CR)

Physical Form: Sheets

Features: Chemical Resistant, Durable, Good UV Resistance, Good Weather Stability, Leakage Proof, Ozone Resistant, Temperature Resistance

End Uses: Roofing Membranes

Tensile Strength: 10.35 - 10.35 MPa

Technical Data Sheet
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Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Usage

Excellent for flashing and expansion joints on built-up or elastomeric roofing systems, decks and below-grade or between slab waterproofing membranes. Appropriate for installation wherever the roofing or waterproofing membrane terminates at walls, parapets, curbs, expansion joints, penetrations, protrusions or where one roofing system ties into another.

Application

Field curing neoprene is highly pliable allowing ease of application to most shapes and irregularities and thus curing to shape. It may be applied with contact adhesive to concrete, masonry, metal and wood to form a permanent waterproof bond. It can be bonded to elastomeric roofing and waterproofing membranes with Gaco Western contact adhesive or hot mopped into conventional built-up roofing with hot bitumen.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Tensile1500.0psiASTM D-412
Elongation400.0%ASTM D-412
Hardness75 - 85Shore AASTM D-2240
Tear Resistance (Die C)150.0pliASTM D-624
Water Resistance (7 Days R.T)2.25%ASTM D-471
Water Vapor Permeability0.005perm.inASTM E-96
Low Temperature Brittleness-40.0°FASTM D-746
Thickness60.0mil

Regulatory & Compliance

Certification

Product certified for Low chemical emissions UlCOM/GC Ul 2818.

Packaging & Availability

Packaging

Packaged in rolls of various widths by 100 feet in length.

Storage & Handling

Storage

Store in an area maintained at a temperature between 50ºF and 75ºF, out of direct sunlight or exposure to adverse weather conditions. Do not place near excessive heat, sparks, or open flame. Field curing neoprene sheet has a shelf life of approximately 90 days during which it remains conformable to irregular shapes.