Boracol & Awlgrip

[JSYmartini]

I've just started taking my rubbing strake back to bare wood for re varnishing.

I want to clean it with Boracol/patio magic/oxalic/whatever I can find locally, to get rid of the dark patches etc.

It's bound to end up running onto the hull which has been Awlgripped - do I need to worry about this?

 

[Poecheng]

It would be worth finding a spec sheet but I doubt that you will have problems.
I felt no need to be particularly careful on my wood which is next to gelcoat and there was no harm to that whatsoever.
Mine (rubbing strake and grab rails) were done a couple of seasons ago and still look good and clean/silver. That way you can avoid varnishing !!!!!!

 

[pvb]

No problem with Boracol. I use Boracol on the toerail, and there's an Awlgrip painted hull stripe below it which hasn't been affected.

 

[Twister_Ken]

No problem with Boracol. I use Boracol on the toerail, and there's an Awlgrip painted hull stripe below it which hasn't been affected.

Ditto that. My Twister was Awlgripped, and Boracoled twice a year. No problems.

 

[JSYmartini]

Thanks for that, makes the job a bit easier.

As it happens I've only been able to find some other brand of patio cleaner. Tried a small area applying it neat and giving a bit of a scrub, made next to no difference.

Where I have sanded back to bare wood so far, a few days exposed to the air seems to help just as much in getting rid of the dark damp patches.

 

[Stork_III]

Thanks for that, makes the job a bit easier.

As it happens I've only been able to find some other brand of patio cleaner. Tried a small area applying it neat and giving a bit of a scrub, made next to no difference.

Where I have sanded back to bare wood so far, a few days exposed to the air seems to help just as much in getting rid of the dark damp patches.

Borocol/Patio Magic will not work immediately. Apply and leave for a few days and allgreenand mould will be gone.

 

[Vara]

Patio magic and boracol both act on mould, are fairly benign, and seem to have no reaction with fabric, ropes or paint/gel coat.

However if the dark patches on the wood are caused by water penetration then they will do nothing to lighten them, oxalic acid may work but I have found it to be pretty ineffective, sanding seems to be the only answer.

 

[bromleybysea]

I use patio magic on both decks and canvas and it works a treat but not instantly. On wood it should be liberally applied on a dry day but benefits from a light spray with water after 24 hours or so. It's never affected painted surfaces or indeed had any detrimental effect on canvas work.

 

[JSYmartini]

However if the dark patches on the wood are caused by water penetration then they will do nothing to lighten them, oxalic acid may work but I have found it to be pretty ineffective, sanding seems to be the only answer.

Ah, this is what I have and was hoping to do. Sanding it is then..