|Color/Appearance||Jointfill 302 is available in medium gray and light reflective.|
|Hardness (ASTM D 2240)||Shore D 50|
|Mixing Ratio||1 to 1 by volume|
|Packaging & Estimating/Coverage|
Jointfill 302 is supplied in kits, each containing the proper proportion of liquid components. Standard packaging information is shown below:
|Directions for Use|
|a. Preparation: Joint surfaces must be physically sound, thoroughly clean, free of oil, wax, loose paint, rust, scale and other deleterious material. Grinding, wire brushing or sandblasting may be required to expose a sound and clean bonding surface.|
b. Priming: Most concrete substrates do not require a primer.
JOINTFILL 302 Flexible Control Joint Filler
Basic Use: Jointfill 302 is a two-component epoxy joint filler designed to be used in control and construction joints in concrete industrial floors. Jointfill 302 is a low modulus, flexible joint filler used in saw cut floor joints to provide support and load-bearing capacity at the joint edges. Jointfill 302 is used in floor control joints where slight movement is possible due to thermal variations. It is available in two consistencies, self-leveling and gel, for horizontal and vertical applications.
Typical Applications: Control and construction joints in industrial concrete floors; repair compound to seal and fill random cracking in floors; joints in penitentiaries where a tamper-proof and gouge-resistant sealant is required.
Limitations: Do not use outside or as an expansion/ contraction sealant. New concrete slabs must be at least 3 months old before installing Jointfill 302, according to ACI 302.
Composition: Jointfill 302 is a two-component, moisture insensitive, 100% solids epoxy joint filler and sealant.
Applicable Standards: ACI 302, Guide for Concrete Floor and Slab Construction, Section 4.10, Joint Materials.