Thread: Glasscoat

Originally Posted by nickwithaz

[...] I wanted to [...] match some blackbutt decking to the other timber I've oiled.

Sorry, I'm confused about what you're really trying to do. Previously, I was
talking about adding a stain to a 2-pack glossy varnish that only comes in
clear. But you seem to be talking about decking to walk on, for which glossy
polys are totally unsuitable. What is your "other timber"? Is it a different
section of decking? A wall? A handrail?

Your blackbutt decking is going to change colour over time anyway,
(especially if you're less-than-totally-anal about weathering/cleaning
before applying the finish). So any initial colour match you might achieve
probably won't last. I would just look at the range of (say) Spa-n-Deck
colours, and choose whichever is nearest to what you want, erring on
the side of too-light rather than too-dark - because you can always darken
it more later.

Sorry that I can't offer any more than this until I understand better what
you're trying to do.

- strangerep.

Originally Posted by strangerep

Sorry, I'm confused about what you're really trying to do. Previously, I was talking about adding a stain to a 2-pack glossy varnish that only comes in clear. But you seem to be talking about decking to walk on, for which glossy
polys are totally unsuitable. What is your "other timber"? Is it a different
section of decking? A wall? A handrail?

Sorry strangerep, I jumped into detailed questions without providing the background... I have built a shade hut almost entirely from blackbutt and have used the same timber decking that I intend to use on the floor joists on the roof rafters as the ceiling lining.

Now, I pre-oiled all of the timber using Intergrain decking oil, and hoped to firstly use the 'left over' boards for thedeck... but now GSWMBO wants them to better protected than just oiled (big mistake explaining that one )... Secondly I would prefer it if the colour matches the ceiling boards (not an issue if I can clear coat the oiled boards obviously...)

So, hence my first question about being able to epoxy/varnish/whatever over the top of oiled-boards.

My second question then is assuming the above shouldn't be done, how best to achieve a good colour match.

It sounds like the Spa N' Deck is a good option - particularly from a durability perspective - but it means I either don't use the oiled boards or spend a fair bit of time removing the oil. I can find somewhere else to use them, but then GSWMBO looks at the financial and storage implications of getting more

Originally Posted by nickwithaz

S[...]I pre-oiled all of the timber using Intergrain decking oil, and hoped to firstly use the 'left over' boards for thedeck... but now GSWMBO wants them to better protected than just oiled (big mistake explaining that one )... Secondly I would prefer it if the colour matches the ceiling boards (not an issue if I can clear coat the oiled boards obviously...)

OK, so you have ceiling boards already installed, with decking oil applied?
And... still not quite understanding... those ceiling boards are exposed to the
weather on top? And they're visible underneath from inside the hut?

So, hence my first question about being able to epoxy/varnish/whatever over the top of oiled-boards.

The only 2-pack epoxies I've used are Intergrain's "Everdure" sealer,
and their "Perfection" high-gloss varnish. I doubt they would play nice with
decking oil, as they both use special non-turps thinners. In any case, they're
glossy, and hence not much good on floors.

My second question then is assuming the above shouldn't be done,
how best to achieve a good colour match.

You didn't say whether the oil was tinted or "natural" (which I call
"vomit yellow").

It sounds like the Spa N' Deck is a good option - particularly from a durability perspective - but it means I either don't use the oiled boards or spend a fair bit of time removing the oil. I can find somewhere else to use them, but then GSWMBO looks at the financial and storage implications of getting more

I believe that applying acryllics like Spa-n-Deck over previously-oiled
timber requires sanding back to bare wood and starting again. But
others over in the "DECKING" forum have more experience with
those issues, so you should try asking over there.

Probably not what you wanted to hear, though.

Sorry for the delay in my replay Strangerep - life has been crazy lately....

Originally Posted by strangerep

OK, so you have ceiling boards already installed, with decking oil applied? And... still not quite understanding... those ceiling boards are exposed to the weather on top? And they're visible underneath from inside the hut?

They are visible underneath - but only the ceiling layer - it has a metal roof (seperated by ply, insulation and battens).

Originally Posted by strangerep

The only 2-pack epoxies I've used are Intergrain's "Everdure" sealer, and their "Perfection" high-gloss varnish. I doubt they would play nice with
decking oil, as they both use special non-turps thinners. In any case, they're
glossy, and hence not much good on floors.

Fair enough... you convinced me not to go that route...

Originally Posted by strangerep

You didn't say whether the oil was tinted or "natural" (which I call "vomit yellow").

It's "vomit'ish" - a nice vomit

Originally Posted by strangerep

I believe that applying acryllics like Spa-n-Deck over previously-oiled timber requires sanding back to bare wood and starting again. But
others over in the "DECKING" forum have more experience with
those issues, so you should try asking over there.

Probably not what you wanted to hear, though.

Not really, but I have finally learnt to take advice! I decided to go with the Spa n' Deck - it did require more work initially but (for once) didn't end up with costly, painful screw ups

Thanks for your help!

Cheers,

Nick