Product Specification

Lexel

Clear, all purpose gap sealant for interior and exterior use

*1.00

Joint Sealant

1.01

All joints must be prepared, in accordance with the manufacturer’s current technical data sheet.

1.02

Preparation

The joint surfaces must be structurally sound and free of dirt, oil, release agents, loose materials and any contaminating foreign matter from joint faces. Remove all rust, scale and loose surface coatings from metal surfaces. Remove any grease with Solvent 10.

In moving joints, the sealant must not be allowed to bond to the back face of the joint. Prevention of 3 sided adhesions is achieved by installing either a polyethylene bond breaker tape, or placing / pressure fitting a closed cell, polyethylene backing rod or filler board into the joint to support the internal back of the sealant.

All materials used in conjunction with the new sealant system, shall be approved by the sealant manufacturer.

2.00

Sealant

2.01

The Sealant is to be ‘water-clear’, non-sag, co-polymer based, and elastomeric. It is to provide high clarity and be ideally suited for gap filling and joint sealant applications.

The sealant shall exhibit the following properties:

Tack free time: / 30 minutes @ 23oC, 65% RH
Drying time: / 2-4 days @ 23oC, 65% RH
Full cure: / 1-2 weeks, 23oC, 65% RH
Hardness: / 25 Shore A (1 month cure)
Clarity: / 13 NTU above 5oC
Application temperature: / 5oC to 45oC
Continuous service range: / minus 30oC to +90oC

2.02 

Lexel from Parchem Construction Supplies meets the performance criteria and is approved.

Parchem Construction SuppliesDocument Date: 09/2009Page 1 of 1

Parchem offers direct assistance with specifications for individual projects; we can visit the site, design office, or arrange a meeting at our branch office. It is recommended that Parchem be consulted early in the design process. For Technical Data Sheets (TDS), Specifications and Method Statements, please visit our website at www.parchem.com.au. * To insert the Specification, Copy and Paste.