Seals and waterproofs metal or concrete bund areas and pipes. Excellent chemical resistance
Total price
€487.10 (Ex VAT)
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.
| Volume | 4L |
| Properties | 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 | Exterior, Interior |
| Primer required | No |
| Composition | 2 part, 100% solids epoxy resin |
| Coverage | 14m² per 4L |
| Recommended number of coats | 1 |
| Dry film thickness | 300 microns |
| Curing time (at 20°C) | 12 hours |
| Minimum application temperature | 10°C |
| Maximum application temperature | 30°C |
| Maximum operational temperature | 60°C |
| Pot life | Up to 25 minutes at 20°C |
| Principle limitations | Lighter colours (particularly Light Grey) can discolour with UV; however, this will not affect the durability or chemical resistance. If the coating is exposed to UV prior to full cure discolouration is more likely. |
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).
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.
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.
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:
| Best long term resistance | ||
| Oxalic Acid 10% | Low Aromatic White Spirit | Ethanol |
| Tartaric Acid 20% | Odourless Kerosene | Ester Alcohol |
| Calcium Hydroxide 50% | White Spirit | Anti-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
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| Some attack, limited resistance | Not 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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This product:
Watco Bund Sealer |
Watco Chemi-Coat |
Watco Chemi-Coat Anti Slip |
Watco Chemi-Coat Acid Strength |
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From €263.10 (Ex VAT) |
From €237.70 (Ex VAT) |
From €245.50 (Ex VAT) |
From €269.30 (Ex VAT) |
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| 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 | Exterior, Interior | Interior | Interior | Interior |
| Finish | Glossy, smooth | Glossy, smooth | Glossy, textured | Glossy, smooth |
| Recommended number of coats | 1 | 1 | 1 | 1 |
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Bonds GRP to substrate where screw fixing is not possible
