Sherwin-Williams M535


We no longer stock this product, but can recommend Sherwin-Williams Macropoxy L524 as a great alternative.

Product not available
This Product has been Discontinued


Sherwin-Williams M535 (previously known as Resistex M535) is a single pack, pitch free, vinyl copolymer resin based underwater coating which provides anticorrosive protection when applied onto blast cleaned steel. It is suitable to be used in situations where coal tar pitch products are excluded on health and safety grounds, or where bleed through of pitch into topcoats is not acceptable. 

Recommended Primers

  • Macropoxy L574 Blast Primer
  • Macropoxy L425, Macropoxy C425V2

Recommended Topcoats

Indefinitely overcoatable by itself or by a wide range of antifouling compositions.
Consult Technical Team for details of speci

Product Details

Data sheet

For Use On
Application Method
Brush, Roller, Spray
Standard / Ready Mixed
Single, Two or Three Pack
Pack Size
Brush, Roller, Spray
4.7m² per litre
Touch Dry
30 Minutes
UN Number

questions PAUL BROOKES on 2019-02-15 13:55:03

Can this product be applied over rylard coflex VT on the underwater hull of a narrow boat..Does it dry hard and is it oil and chemical resistant..Thank You..

Answer from Rawlins’ Technical Team: 

Effectively Sherwin-Williams M535 primary use is over vinyl tar products which Sherwin-Williams no longer manufacture, in this case it should be OK, however M535 is based on strong solvents. As per the nature of the coatings, they remain inertly soft, meaning there is more chance of intercoat leaching, the strong solvents in the M535 could interact with the subsequent coating. We would recommend a trial area be performed to ensure the solvents from the M535 do not soften the Coflex into disadvantage.

questions James collins on 2017-12-14 06:59:29
Question: Hi would this product be ok to line a water bower that’s being used for animal water?
Answer from Rawlins’ Technical Team: 

Sherwin-Williams M535 is really only used as part of a specification using antifouling paints on the underside of ships. It is not the ideal product for your requirement and would be being used out of context.

Assuming the product has got to be 'taint free' as it is lining a vessel supplying water for animals to drink you would need to use a potable water formulation being Sherwin-Williams Macropoxy P300.

Question about the product

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Sherwin-Williams M535 is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT