Epoxy Based Liquid Membrane

Cement Based Liquid Membrane

Property Repair Systems - 01626 331351 - speak to real people about sealing surfaces

 

 

 
     

Wall and Floor Coatings - Cement or Epoxy based liquid membranes

Our Epoxy Seal Coat and Hydradry Tanking both act as waterproof paints, ideal for application to damp masonry and damp concrete. Waterproofing concrete can be carried out with either product, but for a full vapour barrier use Epoxy Seal Coat. This acts as a waterproof sealer, waterproofing floors and becoming a damp proof membrane, to protect floor coverings or laminate flooring from dampness in the concrete slab. Please call us for free technical advice on 01626 331351.


Epoxy Based Method - Summary - coating floors to provide a Waterproof Membrane - full Vapour Barrier

1. Clean - remove all dust and contamination. Grind if necessary to produce a hard, dust free surface.

2. Repair - grind out any cracks and the floor to wall joint - fill with our Fillet Seal, Epoxy Repair Mortar or Thixo Rapid.

3. Prime - apply one coat of Epoxy Seal Coat Clear.

4. Coat - apply one more coat of Epoxy Seal Coat Clear or Colour Coat - two more if below external ground level.

Spreading Epoxy Seal Coat grey over a large area quickly using a Squeegee on a broom handle

Epoxy Seal Coat Grey - apply using a brush, roller or squeegee.

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Ultra Epoxy Seal Coating - available in 1 litre, 2.5 and 5 litre containers, supplied as 2 liquids which have to be mixed together.

Available in Clear and Grey from stock.

Other Colours available to Order.


Cement Based Method - coating floors and walls to provide a Waterproof Membrane

1. Clean - remove all dust and contamination. Grind if necessary to produce a hard, dust free surface.

2. Repair - grind out any cracks and the floor to wall joint - fill with our Fillet Seal, Epoxy Repair Mortar or Thixo Rapid.

3. Prime - apply one coat of Cement Based Tanking.

4. Coat - apply one more coat of Cement Based Tanking - two more if below external ground level (for Render Coat bonding).

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Floor to Wall Joint - the weakest part of any floor seal

Ensure that you seal the floor to wall joint before applying the coating.

This can be sealed using Mouldable Epoxy Putty or Structural Epoxy Pouring Resin or our Fillet Seal or BondAcryl mixed with sand and cement.

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Coating Options - to finish repairing a damaged concrete floor or wall, or to seal a 'bund' (to retain chemicals, oils etc.) you can apply one of two systems;

Cement Based

Hydradry cementitious 'tanking' coatings are waterproof, but not absolute vapour barriers. For some applications this is unimportant. The cement based system is easy to apply to damp and rough surfaces, requires two coats brushed out in different directions (to avoid pin holes) and is rapid drying. It has limited chemical resistance, compared with an Epoxy coating.

Cement based Tanking coating - Hydradry

Waterproofing with cementitious 'tanking'.

Apply with a soft brush.

See Cement Based Tanking in our Resins Shop


Epoxy Based

Ultra Epoxy Seal Coat has high chemical resistance, is a full vapour barrier, is easy to apply over smooth renders, screeds or 'tanking' layers. Higher cost than cement based systems and not so easy to apply over rough surfaces.

Epoxy Seal coat applied to concrete

Waterproofing with Epoxy Seal Coating -

Apply by Brush or Roller.

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Cementitious Tanking - available in 25kg plastic tubs, powder, just add water

Epoxy Coating - available in 500cc, 2.5 and 5 litre containers, 2 liquids.

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Crack Repair - firstly, repair any cracks with epoxy primer and epoxy mortar

Prepare the areas to be coated by repairing any cracks and sealing floor to wall joints first.

Crack Repair - cut out the cracks with a masonry grinder to form square edged slots and remove all dust and debris.

Apply Epoxy Primer liquid by brush and whilst tacky lay in the putty-like repair mortar, Mouldable Epoxy Mortar.

Slot correctly cut out, square shouldered, dust blown out, ready to Prime and Fill.

Cut out the crack to a square slotMixing Mouldable Epoxy Putty

Mixing Mouldable Epoxy Mortar in the gloved hand


For Larger holes and cracks - consider Structural Pouring Grout - see next section below.

For cosmetic matching of colour or texture - you can add your own Site dust or chippings to the surface, or ask for our Mortar Colour powder, which you can mix into the Mouldable epoxy mortar.

Epoxy Primer - available in 500cc, two pot, liquid.

Mouldable Epoxy Mortar - available in 1 litre, two pot putty.

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Hole filling - repair with Structural Pouring Resin

Hole Repair

Cut out the cracks with a masonry grinder to form square edged slots and remove all dust and debris.

Pour in Structural Epoxy Pouring Resin.

 

Pouring Structural Epoxy pouring Resin

Pouring Structural Pouring Resin into a hole.


For cosmetic matching of colour or texture - you can add your own Site dust or chippings to the surface, or ask for our special Pigment options.

Structural Pouring Grout - available in 1, 2.5 and 8 litre packs, two liquids and a powder.

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Joint Filling - fill the floor to wall joints with acrylic primer and cementitious filler

Joint Filling - cut out the joints with a masonry grinder to form square edged slots and remove all dust and debris. Wet out the slot with fresh water and prime with BondAcryl.

Mix up a mortar of 4:1 sharp, washed sand with fresh Portland Cement, using BondAcryl instead of water. Apply the mix to the primed slot and finish flush.

BondAcryl - available in 2.5, 5.0 and 25 litres

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Site written by: David Moore

David Moore, B.A. (Hons.), C.T.I.S., C.R.D.S. Technical Author

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