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Wet Area Flexible Liquid Membrane:

TREMproof 90

 

Key Benefits Summary

Simple application, water based

Fast drying

Tile in 24 hrs

Good flexibility

No reinforcement

Seamless, no joints or cracks

Low odour, non toxic

 

Product Information

 

Description

TREMproof 90 is a two part liquid applied co-polymer membrane with fibrous reinforcement. TREMproof 90 cures rapidly to form a flexible waterproofing lining for showers and other wet areas as described in the Australian Standard waterproofing wet areas within residential buildings. TREMproof 90 forms a waterproofing lining to most building materials including reinforced concrete, cement render, water resistant plaster board, and fibre reinforced cement sheet flooring. etc. The surface must be firmly fixed to manufacturers direction. Clean and dry. TREMproof 90 is suitable to external use on light pedestrian trafficable decks, parapets and flashings.

 

Usage/Purpose

For waterproofing;

Showers and wet areas

Light traffic areas

Tiles, decks and balconies

 

Pack size

20kg powder + 20 litres liquid = 30 Litres mixed.

 

Colour

Green

 

Technical Information

Coverage

1.5 litres/sq metre/1.2mm (Dry Film Thickness)

Number of coats

2-3

Touch dry

Approx 3 hours at 0.6mm DFT, 22degrees C

Colour

Green

Clean up

Water (before curing)

Toxicity

Non toxic

Solvent resistance

Non resistant

Weather resistance

Good

Shelf life

6 months in dry storage

Mix ratio

Powder 1kg, liquid 1litre

Pot life

Use within 3 hours of mixing

Packaging

(20litres liquid) + (20kg powder) = 30litres mixed

 

Usage guidelines

 

Substrate preparation

Remove all dirt, dust, plaster and cement droppings, protrusions, oil and other contaminants. Fill screw holes. Apply a bond breaker tape (eg PVC duct tape) over sheet flooring joints. To the wall/ floor junctions and the floor/hob, hob/wall joints within the shower tray, apply approx 8mm silicone or P.U. sealant or foam backing rod as a bond breaker. Apply sealant around floor penetrations, tap and rose plumbing and other discontinuities. Floor wastes in concrete shall be cut level with the floor. For sheet flooring, leak controls flanges shall be fitted and fully sealed. Cracks – non movement and hairline cracks may by filled with a brush coat of Tremproof 90. Movement cracks shall be routed out, cleaned and filled with silicone sealant. Apply a reinforcing bandage embedded in Tremproof 90 and allow to dry.

 

Priming

Priming all surfaces with Tremproof 90 WB Primer. External surfaces shall be primed with Tremproof 100 primer. All metal surfaces are to be primed using a zinc rich primer.

 

Method of application

Mixing- stir powder component into half the liquid until smooth, stand for 5 minutes, re-stir and add the balance of liquid. DO NOT add water to mixture before or during use. Apply two or more coats of Tremproof 90 to the floor and covered areas to ensure a minimum dry film thickness of 1.2mm apply one or two coats to wall areas above the shower tray to a dry film thickness of .5mm. Use brush of short nap roller for walls. Ensure the membrane is turned down into the floor waste or well sealed around the leak control flange and other penetrations. Ensure flashing angles are properly sealed across doorways. Check for pinholes, missed or cracks in the membrane when dry and rectify.

 

Precautions

Do not apply at above 35C or below 6C. Areas subject to rising damp or back pressure should be first sealed with an epoxy coating. Cold damp conditions retard cure – allow plenty of air flow to aid drying. Do not apply excessive thickness to internal corners or shrinkage cracking may occur. Make sure that the membrane is fully dry before tiling over, normally 1-3 days. Protect membrane against damage before and during tiling – very important on timber floors. Do not apply more than 1.2mm DFT per coat or reduced flexibility will occur. Tremproof 90 is suitable for tiling over. Use standard cement or water based tile adhesive. Do not use solvent based adhesives.

 

Health & Safety Precautions

The material safety data sheet must be read and understood prior to use.

 

Storage

Dry storage

 

Shelf Life

6 months in dry storage

 

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