For use with Watco specialist polyaspartic coatings
Watco Polyaspartic Primer is a unique, two part resin that has been specially designed prior to using Watco’s range of polyaspartic coatings. When applied by roller, Polyaspartic Primer primes and seals very porous or high suction surfaces, such as sand and cement screed, to ensure a uniform finish and help prevent air entrapment bubbles in the subsequent coating. Polyaspartic Primer cures quickly and can be overcoated in 4 hours. This product can also be beneficial when overcoating an existing, well-bonded paint before using a Watco Polyaspartic coating as a top coat.
Use with the following Watco products: Cold Set Coating, Fastcoat, Food Safe Coating, Protecta-Coat, Safety Coat Cold Cure and Safety Coat Food Safe.
| Curing time (Floor temperature) | Recoat time | Touch dry |
| -10°C | 24 hours | 16 hours |
| 0°C | 12 hours | 8 hours |
| 10°C | 6 hours | 4 hours |
| 20°C | 4 hours | 2 hours |
| Suitable for | Bare, porous concrete |
| Finish | Clear |
| Interior or Exterior | Exterior, Interior |
| Composition | 2 part polyaspartic resin |
| Number of components | 2 |
| Coverage | 20m² per 2.5L |
| Number of coats | 1 |
| Recommended number of coats | 1 |
| Mix ratio | 100 parts resin : 59 parts curing agent |
| Application tools | Microfibre roller. Cut in using a brush |
| Wet film thickness | 100 microns |
| Dry film thickness | 85 microns |
| Curing time (at 20°C) | 4 hours |
| Minimum application temperature | -10°C |
| Pot life | 15°C = 20 minutes. Less than 15°C = 30 minutes |
| Storage | Between 15°C - 25°C for at least 8 hours prior to use. Do not allow to freeze |
| Shelf life | 12 months in unopened container |
| Principle limitations | Do not apply to damp surfaces. Do not apply if rainfall is imminent. Most self-levelling compounds cannot be painted – please ask for details. Painting metal chequer plate can be a problem since coatings can wear prematurely off the ‘high spots’ |
| Cleaning tools | It is not practical to clean applicators and they should be discarded after use |
Bare concrete – remove surface laitance, dust and any light dirt or grease deposits using Watco Etch & Clean. Watco Etch & Clean also etches smooth, bare concrete surfaces to provide a key. Flush with clean water and allow surface to dry. For the removal of heavier deposits of oil and grease we recommend Watco Concroff®, again, flush with clean water and allow the surface to dry.
New concrete – as a guide, new concrete should be left for eight weeks to dry. The surface should then be prepared using Watco Etch & Clean and thoroughly rinsed away and left to dry prior to applying this primer.
Painted surfaces - Diamond grind the surface prior to application to achieve a consistently rough profile, and ensure all weakly bonded material is removed. Glossy or inadequately prepared surfaces may cause adhesion issues, so a thorough inspection is recommended to ensure no areas are missed, a bristle blaster can be used in any hard-to-reach areas. Thoroughly sweep the area following grinding; any loose material or dust can compromise adhesion. Bio-D can be used to remove any grease and oil from the surface following the grinding process, however, surfaces washed with Watco Bio D must be then thoroughly rinsed with water and allowed to dry fully, prior to coating.
Application in low temperatures – If applying in cold conditions the product should ideally be stored in a warm room at least 8 hours prior to use. Below 5°C it may be necessary to avoid processes which involve wetting the floor due to the difficulty in drying. A good sweep or mechanical brushing may be sufficient.
Mix between 10°C and 25°C. Remove the two inner tins from the tall outer tin. Stir each tin thoroughly and poor all of the contents into the outer tin, (scrape around the inside of the tins to remove any residue). Mix the components together thoroughly using a spatula or similar wide bladed tool, (a piece of wooden batten is ideal). Continue mixing until an even consistency is obtained. Do not mix more than one pack at a time. If a paint stirrer fitted to an electric drill is used, also use the spatula to blend in any unmixed material from the side and bottom of the tin. Do not dilute.
Apply between -10°C and +25°C. Empty the mixed components into a paint tray and apply to the floor using a microfibre roller, (not a medium pile or foam), ‘working out’ the primer into a thin paint film. A paint brush can be used for cutting in. Do not apply too thickly since this will result in reduced coverage.
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This product:
Watco Polyaspartic Primer |
Watco Powerfloat Primer |
Watco 4 Hour Epoxy Primer |
Watco Epoxicote High Build Primer |
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€127.35 (Ex VAT) |
From €128.30 (Ex VAT) |
€138.00 (Ex VAT) |
€100.35 (Ex VAT) |
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| Primes smooth & power floated concrete | - | |||
| Composition | 2 part polyaspartic resin | 2 part, water based epoxy resin | 2 part, 100% solids epoxy resin | 2 part, water based epoxy resin |
| Primes porous dusty surfaces | ||||
| Colour | Clear | Grey or clear | Clear | Grey |
| Can be used at low temperatures | ||||
| Can be applied to damp surfaces | ||||
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