Window leak sealant
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  1. #1
    Rods 'n' Sods Junkie Dave Lowe's Avatar
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    Window leak sealant

    Any pros out there can tell me what to seal my rear screen with, don't really want to use urethane, I know silicon is a no no, what about butyl ?
    what make ?
    cheers
    Dave
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    Official RnS Addict mygasser's Avatar
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    why is silicone a no no? i've had a few old cars with leaky screens that i didn't want to remove them or rubbers aren't available. first clean with carb cleaner/degreaser. then mask the the edge of the surrounding panel just where it rolls over into the screen recess and the same onto the rubber edge or chrome trim if that's the case. then add a bead of black silicone and smooth it to a slight dip. lastly peel the tape back on itself and leave to dry. if there is a chrome trim repeat at the trim to glass join. it's easy to remove if the window ever needs to come out and you can clean it off if any paintwork is ever needed. works for me.
    neil.
    need a job done on your project? i may be able to help.
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    Official RnS Addict brading's Avatar
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    I have a similar problem. What make of Silicone would you recommend to use.
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    Official RnS Addict 28Chevy's Avatar
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    Captain Tolley - Repair your leaking windscreen seals

    If you have large gaps this may run straight through, but it works well on hair line cracks.
    Whirrr whirrr chuff chuff de chuff........chuff......BRUMMMM!

    My Chevy thread: https://www.rodsnsods.co.uk/forum/sho...y-coach-403745
    Rugged Robin 2/3rd track: https://www.facebook.com/Rugged.Robin.tracked/
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    Quote Originally Posted by brading View Post
    I have a similar problem. What make of Silicone would you recommend to use.
    Not used it myself but it's been highly recommended.
    https://www.permatex.com/products/ad...-glass-sealer/
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  8. #6
    Rods 'n' Sods Junkie Dave Lowe's Avatar
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    Quote Originally Posted by mygasser View Post
    why is silicone a no no? i've had a few old cars with leaky screens that i didn't want to remove them or rubbers aren't available. first clean with carb cleaner/degreaser. then mask the the edge of the surrounding panel just where it rolls over into the screen recess and the same onto the rubber edge or chrome trim if that's the case. then add a bead of black silicone and smooth it to a slight dip. lastly peel the tape back on itself and leave to dry. if there is a chrome trim repeat at the trim to glass join. it's easy to remove if the window ever needs to come out and you can clean it off if any paintwork is ever needed. works for me.
    neil.
    I read in an article in Street Rodder a few years back, they said on no account use silicone ? before I retired I was a builder and have used more types of sealant than most people have head of, I have had expensive "lasts 25 years" silicone and polyurethane sealants that have failed in about 6 years, that's why I asked if there was a pro - ie a professional windscreen fitter that knew what to use, I want to be able to remove the screen in future without destroying the rubber.
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  9. #7
    Official RnS Addict Big Joe's Avatar
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    I can't remember the name of it but the guy that fitted my screen used a really soft messy stuff.
    Working in the marine industry we use all types of sealants and all have their pros and cons. Polyurethane sealant are good for bonding and bedding in solid items but (in my experience not good at bonding things that are meant to be flexible. Butyl sealant is usually soft and sticks to everything
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  10. #8
    Official RnS Addict brading's Avatar
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    Thanks for the replies guys to me question, cheers Paul
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  11. #9
    Official RnS Addict mygasser's Avatar
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    i've used 'force' brand automotive silicone in black https://www.ebay.co.uk/sch/i.html?_o...alant&_sacat=0
    when you replace v8 manifold end cork gaskets with silicone you don't have to change it after 6 years, that seems an old wives tale. either that of it was from the days when silicone sealers were ****.
    neil.
    need a job done on your project? i may be able to help.
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  12. #10
    Administrator blackpopracing's Avatar
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    You are thinking of 'Arbomast' the ONLY sealant that works on old style screen rubbers. Easy to use, easy to clean off (panel wipe) and easy to remove if you ever take the glass back out.
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