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Watco Bund Sealer

Unique formula seals and contains chemical spills

  • Guarantees exceptional chemical resistance
  • Glass flake reinforced formula
  • Thick epoxy resin – only one coat needed
  • Flexible and waterproof

Frequently bought together

Description

Watco Bund Sealer is a two part, thick epoxy resin, one coat is generally enough to achieve a waterproof seal that is highly chemical resistant. New easier to apply formula with glass reinforcement for even greater resistance to chemical attack.

Recommended areas of use

  • Protection to metal tanks and pipes
  • Can be used to protect metal and concrete structures prior to sinking into earth or water

Features

  • Suitable for internal and external use
  • Can be applied to damp surfaces
  • Excellent resistance to petrol, diesel, acids, alkalis and solvents (see datasheet)
  • Fills cracks between bund wall and floor
  • Flexible chemical and waterproof coating
  • Guarantees exceptional resistance to chemicals - including skydrol
  • Can be used with Watco Fibreglass Reinforcing Tape to fill cracks and joints between bund wall and floor
Specification
Properties New, easier to apply' formula, can be applied to damp surfaces, excellent resistance to petrol, diesel, acids, alkalis and solvents, fills cracks between bund wall and floor.
Suitable for Floors or walls.
Finish Glossy, smooth
Interior or Exterior Interior and exterior
Primer required No.
Composition 2 part, 100% solids epoxy resin
Coverage 14m² per 4L
Number of coats 1
Dry film thickness 300 microns
Curing time 12 hours at 20°C
Minimum application temperature 10°C
Pot life Up to 25 minutes at 20°C.
Application

Surface preparation

Ensure surfaces are clean, sound and free of contaminants. Large cracks in the surface should be repaired prior to Application of Watco Bund Sealer. Minor cracks and joints can be bridged by Bund Sealer with Watco Fibreglass Reinforcing Tape. Remove grease and oil using Watco Bio D.

Watco Bund Sealer can be applied to damp surfaces, although for more permanent installations we recommend that the surface is as dry as possible. Watco Bund Sealer can be applied to painted surfaces but all loose or defective paint should be removed first. Remove loose rust from metal (it is not necessary to remove all ‘well bonded’ rust). Heavily corroded, very rusty metal can be primed with Watco Primebase.

Mixing

Add the contents of the 2 inner tins to the outer tin. Part Mixing is not recommended. Using a flat bladed palette-knife or similar tool, scrape all the material from the inside of the tins and mix thoroughly.

Application

If appearance is critical we recommend the Application of a small trial area first.

Apply by brush, working well into the substrate. The product can be brushed thickly over hairline cracks and joints. One coat is generally sufficient to produce a watertight seal. A second coat may be required on very porous surfaces or to produce a continuous film over rough surfaces.

Test results

Extensive testing is what makes us the most highly qualified paint and repair manufacturer on the market. Our tests cover just about everything you might want to know about a floor coating – how well it bonds to the floor, how durable it is, how well it stands up to scratching and much more. 

Our key tests for Bund Sealer:

  • Gloss Value: 96 - Measured on an Optical Glossmeter, +85% is high Gloss
  • Wolff Wilborn Hardness Test: Bund Sealer is rated 9H (the hardest)
  • Water permeability EN1062-3: rated W2  Indicating less than 0.1kg of water was absorbed
  • Excellent Chemical resistance – tested against the most commonly used chemicals. See the graphs below for full details.
Best long term resistance  
Oxalic Acid 10%Low Aromatic White SpiritEthanol
Tartaric Acid 20%Odourless KeroseneEster Alcohol
Calcium Hydroxide 50%White SpiritAnti-Freeze
Sodium Hypochlorite 15%Sodium Chloride Solution 50%Acetone
Sodium Hydroxide 50%Sugar Solution 50%Brine
Good long term resistance 
Nitric Acid 20%Ethyl Methyl Ketone
Sulphuric Acid 20%Detergent
Hydrochloric Acid 15%Skydrol
Ammonia 20%Petrol 
Naphtha C9

Diesel

 

Some attack, limited resistanceNot resistant
Acetic Acid 20%Xylene
Phosphoric Acid 20%Benzyl Alcohol
Lactic Acid 10%Solvent based paint stripper

Learn more about the tests we carry out and how to read the results here
Full test results can be found on the Technical Data Sheet

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£189.00 (Ex VAT)

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This product:

Watco Bund Sealer

Watco Chemi-Coat

Watco Chemi-Coat Anti Slip

Watco Chemi-Coat Acid Strength

From

£189.00

(Ex VAT)

From

£177.70

(Ex VAT)

From

£183.40

(Ex VAT)

From

£201.20

(Ex VAT)

Please make a product selection to continue

View View View
Composition 2 part, 100% solids epoxy resin 2 part, 100% solids epoxy resin 2 part, 100% solids epoxy resin 2 part, 100% solids epoxy resin
Durability Very heavy Very heavy Very heavy Very heavy
Anti Slip
Chemical Resistant Excellent Excellent Excellent Excellent plus
Interior or Exterior Interior and exterior Interior Interior Interior
Finish Glossy, smooth Glossy, smooth Glossy, textured Glossy, smooth
Number of coats 1 1 1 1

Please make a product selection to continue

View View View

Tools and accessories

Watco Fibreglass Reinforcing Tape

Watco Fibreglass Reinforcing Tape

Strengthens and waterproofs joints and cracks in bund areas

£34.80  (Ex VAT)

Paint Brush

Paint Brush

Professional paint brushes suitable for all coatings

From £2.40  (Ex VAT)

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