CPES 0.95 Litres

£48.00 (GBP) per pack

Smiths Clear Penetrating Epoxy Sealer™ (CPES ™) is a thin epoxy that will penetrate deeply into the surface of wood. CPES Cures premature varnish failure, it will dramatically reduce maintenance costs on exterior wood. It is the ultimate primer for all woods. Furthermore CPES can be used to repair and restore rotten and decayed timber, Fill-It filler can then be used to restore profiles.

CPES 0.95 litre Use and Coverage

Mix 1 to 1 by volume. Coverage varies with porosity of timber but around 5 sq metres / litre on new plywood or softwood. Hardwood coverage is typically twice that, ie it consumes half as much per square metre, and old wood will consume significantly more. If you are unsure of which temperature CPES you require, click here.

For full details of CPES see here:

CPES: Clear Penetrating Epoxy Sealer.

More Information

Creators Notes – From the pen of Steve Smith

Six simple steps to restoration

Penetration testing with the Rot Doctor – The best vs the Rest

How to create the perfect varnish finish

How to restore rotted wood, the science and the practice


Submit your review

Create your own review

Average rating:  
 20 reviews
Smiths CPES

I can only comment on the short term at this stage. Steve is a very helpful chap - call him with any questions and he always gets back to you. I used ... more ...

Yacht rebuild

Have used CPES as a primer prior to painting on ply interior refit of small yacht. Application is simple and effective, a couple of coats sealed the good... more ...


I use CPES as a primer on new wood prior to varnishing with Epiphanes. The CPES is a doddle to use, I use medication measuring cups to achieve the correct... more ...

tannin pull

Used the product to stop tannin pull in exterior white oak doors. Seems to have worked very well but cannot rate it yet until I see what the worst of ... more ...

It is a lifesaver

This is my third batch of CPES. I will not start any restoration project on my wooden boat without first making sure I have a plentiful supply. It is ... more ...

Page 1 of 4: