Epoxy sealer / Primer and undercoat
abecote® 386 is a two-component, filled, solvent-borne polyamide-cured epoxy.
Primer/sealer for porous surfaces such as concrete, plaster, fibre, cement and timber. Undercoat for epoxy or polyurethane finishes in multi-coat systems on metals.
- Versatile, filled epoxy primer for epoxies and polyurethanes
- Epoxy sealer coat
- Easily applied by brush, short-fibre roller or airless spray
- Long pot life
Any surface must be clean, mechanically sound and dry. For porous surfaces, electronic moisture content tests must be conducted prior to application of the priming system. Maximum moisture 4-5% max. (e.g. Protimeter Survey Master or equivalent) or Dynamic Calcium Chloride moisture “weight gain” over 24 hours or a practical overnight “plastic sheet test” is also advisable approx. 1m² masked down on surface).
Concrete must be free of laitance, curing membrane and release agents. If blow-holes, and other blemishes, are present, they must be opened up, preferably by abrasive blasting or grinding.
Plaster should be one coat cement plaster, wood float finished and free of trowelling blemishes. The plaster should not be steel float polished. Putty plaster should not be coated. Fibre cement should be free of all dust and fibre upstands. Timber should be clean and smooth. Wax-free glass fibre laminate should be abraded of surface resin to expose the fibres. All debris of preparation must be removed before coating commences.
Properties of Wet Material
|Mixing ratio||3 base to 1 activator by volume|
|Density (typical)||1,42 g/cm3|
|Flash point||17 ºC|
|Dilution||abe® cote thinners no.3 if required|
|Consistency||low viscosity liquid|
Properties During Application
|Pot life @ 25 ºC||8 hours / 5 l|
|Induction period||Allow to stand for 20 minutes in shade after mixing|
|Volume solids (typical)||48,5%|
|Recommended av. dft per coat||37 µm|
|Theoretical coverage for above dft||13 m2 / l on smooth surface (less on textured surfaces)|
|Wet film thickness at above||75 µm|
|Maximum recommended wft||100 µm|
|Practical coverage for estimating purposes||7 – 10 m2 / l (less on porous surfaces)|
|Drying time @ 25 ºC||Touch dry: 1 to 2 hours
Hard dry: 12 hours
Full cure: 7 days
|Overcoating time @ 25 ºC||minimum 8 hours
maximum 48 hours
|Application temperature range||10 ºC to 40 ºC|
|Do NOT apply||If humidity in excess of 85%|
|Do NOT apply||If surface is less than 2 ºC above dew point|
|Fire resistance of wet film||Flammable|
|Colour||White (for clear see abecote® 436)|
Bonding / Priming
On porous surfaces abecote® 386 is self-priming. On steel surfaces abecote® 386 should be applied over abecote® 384.
Stir contents of each container, particularly the base, very well. Add the activator to the base and stir together for at least five minutes using a flat paddle. It has been found that mechanical mixing gives better dispersion than manual mixing. A suitable mixing method would be a slow speed electric drill (approximately 200 r/min) fitted with a paddle. If only part of a kit is to be used, add one volume of activator to three volumes of base. Measuring must be accurate and separate stirrers used for proportioning each component. The mixed material must be left to stand in a cool place for 20 minutes prior to application.
7 – 10 m2/litre on porous surface, 13 m2/litre on smooth surface.
abecote® 386 should normally be used as a single coat. Circumstances could arise where two coats might be called for, in which case overcoating times must be observed.
abecote® 386 may be applied by brush or airless spray as a first coat or by short-fibre roller if being used as an undercoat. Where airless sprayed, a tip of approximately 350 um is used. Where abecote® 386 is used as an undercoat for epoxy or polyurethane enamels and a finish of the highest quality is required, the dry film may be sanded down to remove surface blemishes. All debris should be washed off with abe®cote thinners no. 3 before overcoating.
abecote® 386 should be stirred frequently during use. abecote® 386 should not be applied if the ambient temperature is below 10 ºC. The curing reaction will not proceed at low temperature. If surfaces are not at least 2 ºC above dew point, there is every chance that a film of condensed moisture may be present. This will interfere with the adhesion of the coating. Wet film thickness should not exceed the recommended figures as solvent entrapment could result. The same condition may be caused if overcoating times are shortened. Solvent entrapment in the film can lead to inferior performance.
abe® super brush cleaner before setting.
Protection on Completion
Against traffic and spillage until cured. Most epoxies chalk and degrade in extensive sunlight.
The primer/sealer coat will be abecote® 386, a two-component, filled, solvent-borne polyamide epoxy resin system, applied in accordance with a.b.e.®‘s recommendations.
abecote® 386 is supplied in 1 L and 5 L yield metal containers.
Handling & Storage
All abecote® 386 related products have a shelf life of 12 months if kept in a dry, cool store in the original, unopened packs. If stored at high temperatures and/or high humidity conditions, the shelf life may be reduced.
Health & Safety
Wet abecote® 386 is toxic and flammable. Ensure working area is well ventilated during application and drying. Avoid flames in vicinity. Avoid inhalation of dust and contact with skin and eyes. Suitable protective clothing, gloves, eye protection and respiratory protective equipment should be worn. The use of barrier creams provides additional skin protection. If contact with skin occurs, wash with water and soap. Splashes into eyes should be washed immediately with plenty of clean water and medical advice sought. Cured abecote® 386 is inert and harmless.
NB: When transporting by aircraft, ask for material safety data sheet.
This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot accept any liability for application – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied.
Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total
a.b.e.® has a wealth of technical and practical experience built up over the years in the company’s pursuit of excellence in building and construction