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RIW MultiJoint

Verified by manufacturer 16 days ago

RIW

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.

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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

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Height

25 mm

45 mm

58 mm

Warranty description

Ten year

Uniclass

Pr_35_90_87_27 Expanded polyethylene (PE) foam stripsPrimary

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.

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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

RIW Multijoint