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TREMproof 100 :

TREMproof 100


Key Benefits Summary

Excellent UV resistance.

Trafficable - excellent abrasion resistance.

Suits a wide range of substrates.

System enhancement through a range of primers and top coats to optimise performance.

Excellent adhesion.

Wide range of colours.

For new construction or refurbishments.

Water based, easy clean up.

Ready to use, no mixing required.


Product Information



TREMproof 100 (DEXX) is a heavy bodied liquid applied acrylic membrane waterproofing system.



Waterproofing of;

Exposed roofs.

Walkways-Requires double reinforcement, see Usage Guidelines.

Parking decks with light vehicle traffic. Requires double reinforcement

Parapet walls.

Plant/mechanical rooms and floors.

Internal wet areas.


Decks. Requires double reinforcement



TREMproof 100 is not recommended for;

Permanent immersion.

Areas subject to harsh chemicals.

Light weight concrete, without prior written approval by TREMCO.

Do not apply if ambient temperature is less that 8 C, or if substrate is less than 5 C.


Pack size/Colour

15 Litre pails.

Light Grey (N35)

Storm Grey (N42)

White (G55)







Technical Information Composition


TREMproof 100 is a heavy bodied coating system - specially formulated using only premium quality acrylic polymers.


Performance (Typical Properties):




>200 Newtons (reinforced)


>500% (unreinforced)


Passes 3mm mandrel at 200 microns d.f.t.


Indicative spread of flame = 0 Smoke development = 4


Continuous service temperature up to 120 C (Dry heat)


Rating = 7 (upon 2 years exposure)


Scratch Hardness = F


Rating = 4A (Unreinforced)


Dilute mineral acids, alkalis, mineral and vegetable oils, aliphatic hydrocarbon solvents.


No fungus growth.

NOTE: Typical Properties should not be used as Specifications.


Usage Guidelines


Substrate preparation


Concrete Roofs and Decks

All concrete and masonry surfaces shall be cured for 28 days. All cracks must be filled. Substrate must be free from dust, oil, curing agent residues and other contaminants. All cracks greater than 1.5mm shall be filled with a cementitious repair material followed by a fibre glass strip embedded in TREMproof 100.

Concrete curing aids should be clear, resin based compounds that are UV degrading and do not contain oils, waxes or pigments. Substrate must be dry.


Mastic Asphalt (Bituminous Substrates)

Surface shall be levelled and all holes and cracks repaired with TREMCO Pabkote 3 patching mix (see Pabkote data sheet for details). If surface has been pebbled, broom off all loose pebbles Prime with TREMproof 100 Primer. If necessary, lay a perforated base felt before proceeding with application. Substrates must be dry.


Exterior Plywood

Ensure sheets are tight butted and well fastened (screwed or screw nailed) and adequately supported. Any gaps should be filled with Tremflex 25 and allowed to cure for 7 days. If inadequate below surface ventilations exists, ensure that underside and edges of plywood are primed before fixing down and install venting either at up-stands (with over flashings) or with built-in vents. Substrates must be dry.


Movement Joints

All movement joints should be sealed.

TREMproof 100 should not be applied across movement joints. It should be terminated at the edges with only the top coat carried across the joint if required.

If sealants are used in non-movement joints the membrane may be taken across using a 150mm double thickness strip over the sealant bead.



New concrete and masonry - Use TREMproof 100 diluted with clean water in a ratio 80:20. Old concrete, mastic asphalt, plywood, previously coated surfaces, decks for pedestrian or vehicle traffic - Use TREMproof 100 Primer. See TREMproof 100 Primer data sheet for details.



All TREMproof 100 bodycoats should be roller applied with a medium/long nap roller. Final top or glaze coats may be rolled or sprayed on - preferably using airless equipment.


Application sequence onto primed surfaces;

Non and light trafficable areas:


300gsm glass fibre mat (laid into wet bodycoat)


Seal or glaze coat (optional - Tremproof 100 Colour seal/ Colour glaze)


Trafficable areas:


300gsm glass fibre mat (laid into wet bodycoat)


300gsm glass fibre mat (laid into wet bodycoat)


Seal Coat (Tremproof 100 Colourseal)


Coverage rate

3 coat system: Approx. 2.1 m2 /litre/coat Approx. 14 m2 per 20L pail in total for 3 coats

5 coat system: Approx. 2.3 m2/litre/coat Approx. 9 m2 per 20L pail in total for 5 coats.

TREMCO Colourseal: 10m2/litre

TREMCO Colourglaze: 10m2/litre


Cure Time  (@ 23 C & 65% RH)

1 to 2 hours touch dry.

8 to 6 hours thorough dry.

7-10 days full hardness.


Recoat Time

4 to 8 hours, or as soon as the operator can walk over the surface.



Water clean up. Fully cured material must be removed mechanically.



Store in original unopened packaging in dry conditions between +5 C and +25 C.


Shelf Life

12 months when stored as recommended in original unopened packaging.


Health and safety precautions

The Material Safety Data Sheet (MSDS) must be read and understood prior to use.


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