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RS800 Mast Varnishing
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Simon1135 View Drop Down
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Posts: 18 		Post Options Post Options   Quote Simon1135 Quote  Post ReplyReply Direct Link To This Post Topic: RS800 Mast Varnishing
    Posted: 18 Mar 18 at 7:38pm
Many thanks for your help!
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cad99uk View Drop Down
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750 ml is plenty. Clean and prepare mast. Apply one coat. Then if you apply second coat within the overcoating time there is no need to prepare between coats. Two coats is sufficient.

There will be enough left over for at least two more coats. So store carefully.
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from memory a 750ml tin will cover 9 m2 so easily enough for 3 coats on the mast
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Simon1135 View Drop Down
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Posts: 18 		Post Options Post Options   Quote Simon1135 Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 18 at 5:46pm
Originally posted by cad99uk

I have used Perfection Plus two part on my RS800 mast. As advised by RS.

Have done it twice. Lasts at least five years each time.

No need to remove fittings!

Do you know how many coats you usually apply using the perfection plus system? Is 1 750ml tin usually sufficient?
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Simon1135 View Drop Down
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Posts: 18 		Post Options Post Options   Quote Simon1135 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 18 at 8:49pm
My thinking was I'd remove all the single pack before applying a two pack varnish next season as, you are right, I'd be relying on the single pack adhesion.

Good advice though and lots of sanding with my suggested method. I'll put myself an order in for the perfection plus.

Main concern was the mast fittings but I will be leaving them where they are!
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Do Different View Drop Down
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What is the minimum temperature you need to sensibly use two pack please? 
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Paramedic View Drop Down
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Posts: 929 		Post Options Post Options   Quote Paramedic Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 18 at 7:52am
Dont use one pack. The UV filters are much poorer and you have to do it again in 12 months
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Sam.Spoons View Drop Down
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Posts: 3400 		Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 18 at 8:16pm
Yup, this ^
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cad99uk View Drop Down
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Posts: 187 		Post Options Post Options   Quote cad99uk Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 18 at 8:14pm
Takes no longer to use a two part. Otherwise you will be putting the two part over a one part at the end of the season. So the adhesion will only be as good as the one part that is left on after preparation.

Just use two part from the get go is my 2p.
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Paramedic View Drop Down
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Posts: 929 		Post Options Post Options   Quote Paramedic Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 18 at 7:56pm
Any two pack topcoat will be fine. be wary that there are an increasing number of two pack rapid build clear primers - these don't have UV filters and are no use in this application
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