Best repair resin

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Best repair resin

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FLD	FLD posted 9 Years Ago HOT Topic Details
Group: Forum Members Posts: 468, Visits: 2.7K	I have a repair to do to my waggon following the MOT man trying to close the bonnet with the prop up (crrraaaack!). It's a CSM laminate so nothing posh. I've repaired with polyester before but I seem to remember reading that vinylester has a better bond for repairs? Have I imagined this or is there some truth in it? I've never used Vinylester before so if it's true are there any pitfalls I should look out for? Thanks guys
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Hanaldo	Hanaldo posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Vinyl has a higher bond strength, so it is better for repairs. It's better in almost every way in fact. Nothing special to watch out for really, use it in the same way as you would polyester. One thing to be aware of is vinyl esters tend to be a bit more sensitive to catalyst levels than polyesters. A polyester will cure no trouble with 0.5% catalyst, but a vinyl ester may not. Stick to 1.2% at a minimum and you won't have any trouble.
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f1rob	f1rob posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 237, Visits: 4.8K	If its a small repair you should be ok but normal glass mat has a binder that dissolves in styrene. there isn't any styrene in vinyl so normally mat for them has a chalk binder so if you haven't got the right mat you might find it a little bit difficult to break down once wetted out
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Hanaldo	Hanaldo posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Vinyl is styrene based...
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Hanaldo	Hanaldo posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Well, I've heard of styrene-free vinyl esters, but they would be specialist. Regular vinyl ester definitely has styrene in it, same as polyester.
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FLD	FLD posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 468, Visits: 2.7K	Thanks guys, I'll fix with some woven glass I have so no worry about binders.
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