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Old 10-13-2019, 01:53 PM   #1
angus99's Avatar
City: Signal Mtn., TN
Country: US
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,168
Expertise needed on stripping/refinishing teak

Iíve started the dreaded job of removing decades of varnish from the rails of our boat.

First issue: Iím using a heat gun, which is getting most of the old fnish off. However, on the aft railówhich I assume was most-often in the sunóIím only able to get the upper layers off with the heat gun. Thereís a base layer that heat and paint strippers, by themselves, wonít touch. The only thing thatís had any effect is copious amounts of stripper, followed by wiping it down to remove flammability, followed by a heat gun. Even then, I still donít get down to bare wood, but am left with a gummy layer (first photo). So, Iím guessing my only option is sanding it off. (80-grit, followed by 150 and 220)

Second issue: Even where the heat gun is working well, there are still other places where some of the original finish is visible after sanding with 80 grit. (Second photo).

Iím going to go back with Cetol Natural Teak followed by Cetol GlossóI do not want to use varnish. Cetol tech support says their finish will only stick to bare wood. They recommend against penetrating epoxy or any other barrier coat.

For those using Cetol, is it really necessary to strip down to perfectly bare wood? If so, it looks like Iíll need to use 60-grit to get all the finish off and remove a fair amount of wood in the process.

If any of you faced similar issues, Iíd appreciate knowing how you handled them.
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