RIW MultiJoint
Verified by manufacturer 6 months ago
RIW MultiJoint is a closed cell, cross linked Ethylene Vinyl Acetate (EVA), copolymer foam. RIW Multijoint is used to waterproof all types of construction gaps and movement joints.
Application
- Used to seal joints in podium decks, car parks, foot or road bridges, stadiums and sports arenas, shopping malls, airports, roofs and building façades.
- May be recessed into the joint, with a sealant over.
Description
A nitrogen blown, impermeable, closed cell, cross linked Ethylene Vinyl Acetate (EVA) copolymer foam, the product is waterproof and resistant to salts and most chemical attack. It also has good UV resistance and is therefore suitable for use in exposed exterior applications.
RIW MultiJoint has been designed for use in all types of construction gaps and movement joints to provide a waterproofing system between the structural elements. Movement capability of up to 90% of the construction gap is achieved, and the material is chemically bonded to each structure, maintaining the waterproofing of the joint.
The product has grooves along the bond surface that run the entire length of the joint, and these grooves increase the surface area and enhance the adhesion to the substrate.
The product is installed into joints using RIW MultiJoint Adhesive, a two part, solvent free, modified epoxy adhesive.
Features and benefits:
- No special jointing pieces required.
- Easily cut and welded on site.
- Available in a wide range of sizes.
- Resists up to 20 m head of water.
Compression stress-strain to BS ISO 7214:1998:
- 10% = 30 kPa.
- 25% = 51 kPa.
- 40% = 82 kPa.
- 50% = 115 kPa.
General information
Color | Silver Grey |
Finish | Micro-textured Other |
Material | Foam Vinyl Other |
Shape | Square Rectangle |
Length | 10000 mm 25000 mm |
Width | 25 mm 30 mm 35 mm 43 mm 45 mm |
Height | 25 mm 45 mm 58 mm |
Warranty description | Ten year |
Uniclass | |
CAWS | E40/545 Compressible sealing strip system F30/615 Movement joints without sealant F30/78 Fire-resisting movement joints without sealant G10/445 Movement joints J21/380 Movement joints M10/460 Strip movement joints M11/820 structural movement joints M20/650 Movement joints |
Specification data - Expanded polyethylene (PE) foam strips
Material | Cross-linked closed cell polyethylene foam. |
Product Reference | RIW MultiJoint |
Type | MJT20. Guidance for specification option: 20 mm joint width; product size: 25 x 25 mm deep; movement: ± 8 mm. MJT25. Guidance for specification option: 25 mm joint width; product size: 30 x 25 mm deep; movement: ± 11.5 mm. MJT30. Guidance for specification option: 30 mm joint width; product size: 35 x 25 mm deep; movement: ± 13 mm. MJT35. Guidance for specification option: 35 mm joint width; product size: 43 x 25 mm deep; movement: ± 15 mm. MJT40. Guidance for specification option: 40 mm joint width; product size: 45 x 45 mm deep; movement: ± 18 mm. |
Adhesive | RIW MultiJoint Adhesive. Pot life: 45 minutes at 15°C; Tack time: 90 minutes; Full cure: Eight hours minimum. Guidance for specification option: Epoxy adhesive used to bond RIW MultiJoint to structure. |
TensileStrength | To BS ISO 7214:1998, 840 kPa. |
Tensile elongation property | To BS ISO 7214:1998, 245%. |
Tear strength | To BS EN 8067:1995, 1055 N/m. |
Operating temperature range | -70°C to +65°C. |
ThermalConductivity | To ISO 8302:1991 (mean temperature of 10°C), 0.0404 W/mK. |
Literature
RIW Multijoint