Polyester Infusion Resin?

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Polyester Infusion Resin?

Author	Message
Matthieu Libeert	Matthieu Libeert posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	I've did some parts with polyester infusion resin and everything went well, in fact I didn't see any difference, The easy thing with polyester is that you can demould after 4hours if you want to... Another advantage is the mixing ratio,... just add between 2-4% of MEKP hardener so you cant make mistakes with that. a negative point is that it is less strong and can indeed get a bit more distortion due to heat. And the smell is realy strong, but you get used to it. I did some parts full vacuum and did get any boiling polyester or something like that... If your just doing parts for cosmetic reasons there is absolutely no problem! Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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TomDesign	TomDesign posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 454, Visits: 2.5K	from image its perfect. but remember i done with infusion hoods after some time surface started to do down i used gelcoat . i think polyster for infusion and etc not best option. Warren showed me epoxy resin is best for parts !
	Reply Like 6
ajb100	ajb100 posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	This was the finish I was getting out the mould using a polyester gel coat and then infusing the part
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ajb100	ajb100 posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	I've used polyester infusion resin supplied by east coast fibreglass. As with most resins, you need to make sure it's fully cured before removing from the mould as I found it twisted the part if removed too soon, I was infusing parts at 6/7 at night, keeping at around 30'c over night and de moulding first thing in the morning and it was fine. The styrene it gives off is nauseous but as long as your vac bag is sealed then you've nothing to worry about. I cure small parts in the airing cupboard and had a bag split and took a few days for the smell to go. Other suppliers might be different, but I found the east coast stuff had a very fine line of max vacuum and the styrene boiling which was just under 0.8 bar vac. Didn't find this lack in vac to cause any problems infusing. HTH
	Reply Like 7
Sharper	Sharper posted 12 Years Ago HOT Topic Details
Group: Forum Members Posts: 6, Visits: 35	I know the best stuff to use is epoxy infusion resin, but the price of polyester infusion resin is very tempting (almost half price). Does anyone on here have much experience in using both types and offer any advice? I have read tons of stuff about polyester resin giving off more fumes, shrinking when curing, and being better or worse at withstanding UV, but would like a real persons opinion, not just the science behind it all and people trying to up-sell their products. Any advice or help would be greatly appreciated, as I am looking to by my resin infusion starter kit with pump next week. (\|\|):::::::o: (\|\|[[(())))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
	Reply Like 8