anyone in the club got any weldon 4 or 16? or know of a local source or different brand name ? got my sump plumbed but my silicon didnt hold the internal baffles in so i had to drain it and take the baffle out and start over ... but as a side note..... the plumbing didnt leak and i can almost run the refugium with full throttle open as long as the quick dump valve to the return area is open. sigh... thanks mike
I would go with Weldon 3 instead of 4. I have a pint of 3 and half a tube of 16. Weldon 4 and 16 are considered Hazardous materials and require you to pay a fee to ship them. I don't what ACI Plastics in NLR sells. Chris probably does.
i already got with ACI .. they use a homemade glue now.. but they did have a half gallon of weldon 4 ... which they gave me .. i repackaged it in a pint and a quart can. thanks
If weldon 4 is a hazardous materal, you can't use it in a tank can you??? I would think not, that's why I'm asking.
all the DIY posts i have read suggested the #4 over 3 due to 4 has a longer working time. thats the main difference. also i got with the people that initally built the sump for me and got with they're vender ( Craftics) and got their craftics #33 shipped in to me... the 33 is equivalent to the weldon 16 ... comes in small tube and much thicker then 3 or 4 .. 16 (#33) was much easier to use then the 3 or 4 .. as far as ive read though.. all of them are usable in our situations.
They both are considered extremely flamable and carcinogenic. They are only used as a solvent to bond the acrylic, not a glue. The solvent "melts" the acrylic together and evaporates away leaving only acrylic. Weld-on 16 is a "thickened" version that just contains some acrylic in it.
Weldon & Acrilic supplier I bought some weldon 4 at ACI Plastics in Little Rock, they have just about any thing you want in weldon & Acrilic you can get it in any thickness, and up to 4x8 ft sheets. The Add. is 1309 North Hills Blvd. North Little Rock, Phone is (offices-800-289-0898) www.aciplastics.net Hope this helps.
