MAINLINE
Building Products
Limited
2 Sefton Road, Litherland, Liverpool, L21 7PG
Tel: 0151 920 6451 Fax:0151 920 6452
[ BITUMEN BASED | COAL TAR PITCH | EPOXY TAR ]
Traditional bottom blacking materials are
based on pitch or bitumen compounds. For new work/where bare steel is
present or where pitch has been used previously, it is preferred that
pitch based coatings are used as these have a number of advantages over
bituminous systems. Pitch is resistant to diesel and oil, has higher
protection against corrosion and is ideally suited for use with cathodic
(anodes) protection. In instances where bitumen has been used in the past
or there is uncertainty as to the type of coating, bituminous materials
should be used.
To ascertain whether a coating is pitch or bitumen,
clean a small area and wipe with a cloth dampened with white spirit.
Should the coating be easily removed or leave a heavy dark brown stain, it
is likely the coating is bitumen based. If resistant it is likely the
coating is pitch based.
It is essential to ensure that with all
materials adequate thicknesses of the coating is applied and that it is
completely dry before the vessel is returned to the water.
| Bitumen Based Hull Coatings | ||
| Sealex (heavy Bodied Bitumen Solution) | Intex (Filled Bodied Bitumen Solution) | Black Prince |
|---|---|---|
| Designed to give maximum protection with a 2 coat treatment. Ideal for re-coating where previous bitumen treatments have suffered major degradation or where new coating is required on bare steel. A spray grade is available for both conventional and airless spray systems. | An easily brushed
product for re-coating existing bituminous materials and is also
suitable for water tank treatment. When used as a complete
protection on bare steel, a minimum of 3 coats must be
applied |
A low viscosity bituminous paint suitable as a refresher coat over existing bituminous coatings. Black Prince should not be used as a primary hull protection. Recommended 1 to 2 coats |
| Coverage Rate: 3
sq.m per litre Drying time: 6-8 hours Colour: Black, semi-gloss |
Coverage Rate: 4
sq.m per litre Drying time: 1-3 hours Colour: Black, semi-gloss weathers to grey |
Coverage Rate: 8
sq.m per litre Drying time: 2-4 hours Colour: Black, gloss |
| Coal Tar Pitch Hull Coatings | |
|---|---|
| Hull Coating Standard Black (Pitch Based) | Comastic (Pitch Vinyl) |
| A resilient pitched based coating with a gloss finish. Ideal for economic re-coats where one or two coats are sufficient. When used for complete protection on bare steel, at least 3 coats are recommended. | Similar to Coal tar pitch with superior abrasion resistance and flexibility. Good resistance to microbial growth. An attractive matt black finish. Two to three coats are recommended. |
| Coverage Rate: 10
sq.m per litre Drying time: 2-3 hrs in good drying conditions. Re-coat time 24hrs (Heavy application will result in extended drying times). Colour: Black |
Coverage Rate: 4
sq.m per litre Drying time: 1 hour in good drying conditions. Hard dry 4 hours Colour: Matt Black |
| Epoxy Tar Hull Coating -Two Pack System | |
|---|---|
| Epimastic GP (General Purpose) | Epimastic MT (Moisture Tolerant) |
| Designed for application under dry conditions and when adequate time is allowed before returning the vessel to the water. Two coats are recommended. | Developed specifically for application in wet conditions and/or where the craft is to be returned to the water shortly after coating. When applied in wet conditions or to a wet surface, brush or roller application should only be used. Do not spray. Two coats are recommended. |
| Coverage Rate: 3.7 sq.m per
litre Drying time: Hard dry 8-16 hours Colour: Black, semi-gloss |
Coverage Rate: 3.7
sq.m per litre Drying time: Hard dry 12-24 hours Colour: Black, semi-gloss |
| The Epimastic range
consists of tough, high build coatings with excellent abrasion and
corrosion protection. They must only be applied to shot blasted or
abraded bare steel or clean/abraded existing epoxy tar. NB: Drying time will be extended at temperatures below 10 Deg. C. Both grades can be diluted with up to 10% X95 Thinner to improve application. | |