Control Joint System
SpecChem’s control joint system is a comprehensive and flexible system of compatible products designed to meet the varying needs of industrial and commercial concrete floors that are subject to heavy forklift traffic, such as warehouses and distribution centers, as well as heavily trafficked retail concrete floors and more.
Our concrete control joint system includes premium products engineered to provide quality, durability, and ease of use. We manufacture a variety of joint fillers for flexibility in application, along with stain prevention to protect your concrete from joint overfill. Color packs for our polyurea joint fillers, along with cleaners and solvents round out our compatible system of products.
SpecChem’s Control Joint System
Rapid Flex CJ
Rapid Curing, Semi-rigid Polyurea Control Joint Filler
Rapid Flex Cj is a 100% solids, two-component, UV resistant, semi-rigid, rapid-curing, polyurea for filling control and construction joints in industrial concrete floors.
- Industrial and commercial concrete floors subject to heavy forklift traffic
- Heavily trafficked retail concrete floors
- Repair of cracks and joints in old concrete floors
- Freezer floors
Rapid Flex 90
Rapid-curing, Semi-rigid Polyurea control joint filler
Rapid Flex 90 is a high durometer, 100% solids, two-component, UV resistant, semi-rigid, rapid-curing, polyurea for filling control and construction joints in industrial concrete floors.
- Pourable dark gray consistency
- Easy 1 to 1 mix ratio,
- High elongation (100%) to resist tearing due to excessive movement
- Semi-rigid flexibility that does not weld slabs together
or become brittle with age - Optimum hardness (Shore A = 90) to transfer wheel
loads while allowing moderate movement - Can be applied and cures down to 0oF
Rapid Flex Color System
Rapid Flex Colorant System is a concentrated pigment pack designed to pigment SpecChem’s two-component polyurea control joint fillers. The Rapid Flex Colorant System simply mixes into a neutral base, providing custom colors for filling control joints on architectural colored and polished concrete floors. Our control joint color system offers the convenience of multiple colors without the high cost of extensive inventory.
SpecPoxy CJ
100% Solids, Semi-rigid Epoxy Control Joint Filler
SpecPoxy CJ is two-component, semi-rigid epoxy for filling control and construction joints in industrial concrete floors. This product supports the joint edges and reduces spalling of the edges caused by wheel traffic.
- Pourable gray consistency
- Easy 1 to 1 mix ratio
- High elongation to resist tearing due to excessive movement
- Moisture insensitive to cure in damp environments
- Semi-rigid flexibility that does not weld slabs together or become brittle with age
- Optimum hardness to transfer wheel loads while allowing moderate movement
Spec CJ Guard
Water-based, Control Joint Filler Stain Protectant
SPEC CJ GUARD is a water-based blend of film-forming polymers that prevents or reduces staining of concrete due to overfill of epoxy or polyurea joint fillers.
- Prevents unsightly stains cause by control joint material overfill
- Makes shaving of joint fillers easier
- Can be removed from concrete and tools with water
- Water-based, very low odor formula
- Contains 13 g/L VOC
SpecChem Control Joint System: How To Apply
Product Resources
– Rapid Flex CJ – Control Joint Filler Application, Lathrop, CA Tesla Facility
– Rapid Flex CJ – TVH Warehouse – Industrial Concrete Floor
– SpecTech: Repairing deep or severely spalled joints with SpecPoxy CJ
– SpecTech: Control Joints – Tips & Coverage
– SpecTech: Cold Weather Product Storage
– SpecTech: Product Storage & Shelf Life Guidelines
– SpecChem Product Selection Guide
– SpecChem Product Category Overview
– SpecGuide: SpecChem Product Catalog