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GacoFlex® NF621

Chemical Family
Polychloroprenes

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.

Properties

Physical Form
Sheets

Product families

Building & Construction — Building Envelope & Roofing
  • Waterproofing & Weatherproofing
Building & Construction — Building Materials
  • Fence Decks & Rails
Building & Construction — Flooring & Surfaces
  • Fillers Levellers & Joints

Other characteristics

Brand
GacoFlex
End Uses
Roofing Membranes
Features

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

Polymer Name
Chloroprene Rubber (CR)
Tensile Strength
10.35 - 10.35 MPa
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.

Markets
Building & Construction
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.

PACKAGING

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

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.

Technology
Elastomers
Certification

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

Product Families
Elastomers — Parts & Shapes
Material Features
  • Chemical Resistant
  • Durable
  • Good UV Resistance
  • Good Weather Stability
  • Leakage Proof
  • Ozone Resistant
  • Temperature Resistance
Plastics and Elastomers End Uses
Roofing Membranes

Technical data

Table 1 of 1

8 rows
CharacteristicValueUnitMethod
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—

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