Question

Talk Composites - The Forum for Advanced Composites

Back

Question

Author	Message
RedLegsGear	RedLegsGear posted 8 Years Ago HOT Topic Details
Group: Forum Members Posts: 9, Visits: 83	I am currently attempting to make myself a kayak paddle. I have chosen to use a carbon/Kevlar hybrid reinforcement on the front face of the paddle blades, I know that I won't be able to sand that reinforcement any after I infuse it without making a Harry mess of it so I am thinking about spraying a thin coat of epoxy onto the mold before I lay the reinforcements in to sorta after like a clear coat. My question is, Will this effect the strength of the finished part and add much unnecessary weight?
	Reply Like 3
Fasta	Fasta posted 8 Years Ago HOT Post Details
Group: Forum Members Posts: 468, Visits: 3.5K	Coating the mould face with epoxy resin could work although epoxies may not behave very well on the waxed/release coated mould surface. It usually runs and fish eyes etc. Also the epoxy will not have very good UV and will go flat with sun exposure. I have done other epoxy coats on moulds but I add a thickening powder like cabosil and this then makes it like honey so it will coat without fisheyes but this is not good for the resin clarity. I am also making infused paddle blades soon with a new mould and I will be using Duratec Sunshield as I do with other moulded parts. Fastacraft Facebook page
	Reply Like 3
RedLegsGear	RedLegsGear posted 8 Years Ago HOT Post Details
Group: Forum Members Posts: 9, Visits: 83	Right on, good advice! I've been making my molds for the blades for two weeks now. Their 90% done. Is the Duratce sunshield an additive for the epoxy? Edited 8 Years Ago by RedLegsGear
	Reply Like 3
Fasta	Fasta posted 8 Years Ago HOT Post Details
Group: Forum Members Posts: 468, Visits: 3.5K	RedLegsGear (16/03/2017) Right on, good advice! I've been making my molds for the blades for two weeks now. Their 90% done. Is the Duratce sunshield an additive for the epoxy? Duratec is a polyester coating especially for in mould coatings designed to work with epoxy or other resin laminates. https://www.youtube.com/watch?v=h79JGYc4g74 Fastacraft Facebook page
	Reply Like 3
RedLegsGear	RedLegsGear posted 8 Years Ago HOT Post Details
Group: Forum Members Posts: 9, Visits: 83	Nice, seems like the perfect product for just about everything I've been making. Thanks bro 👍
	Reply Like 3
Junior	Junior posted 8 Years Ago HOT Post Details
Group: Forum Members Posts: 73, Visits: 473	Did he say 12-15mm for full UV protection??
	Reply Like 2
Hanaldo	Hanaldo posted 8 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	No no, 12-15 'mils', or thou. Meaning 12-15 thousandths of an inch.
	Reply Like 3