Hand held welder, adhesives

Tatnic

Hey guys,

I'm looking to do some work with PVC to build a special application product. I'm wondering which brand hand-held hot air welder is a good value?

And what kind of adhesive would work well with PVC on cast iron or steel?

Thanks

Grumpy

Leister definetly is the most popular.

To the best of my knowledge application of membrane directly to a metal substrate is not a warranted application. Having said that we obviously adhere membrane to metal flashings all the time. For these applciations, we use bonding adhesive. http://www.versico.com/documents/res...VFC1B-OPT2.pdf

I think you may have misrepresented yourself. If I recall in the beginning you said you were an engineer coming up with a spec for a customer. Now you say you are an inventor... Hmmm. Not cool, man. Or am I mistaken?

__________________
-Grumpy
Chicago Gutters Chicago Roofing

Ed the Roofer

Don't even bother with the other brands of Hot Air Welders.

Leister is the best and most durable.

I have tried at least 4 other popular brands of hand welders and they all fall way short, unless you are only going to do one job with them.

Ed

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Grumpy

I've used a sievert hand held also and it was much much lighter but I think the liesiter was better.

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-Grumpy
Chicago Gutters Chicago Roofing

SinglePlyGuy

We've used em all but always end up back with Leister.

As far as adhesive goes, use whatever PVC bonding adhesive is sold by the manufacturer you are using

Tatnic

Yes true on both counts. But I would hardly call this an invention. I need something to perform a certain task and I think a roofer would be the perfect one to build the prototype since the materials that roofers commonly use seem well fitted to the task. Let me ask you...how is the PVC welded to flashing, ie. the "clad" metal flashing? Is it adhered or welded somehow? I'm guessing adhered but that's just a guess.

thanks

Ed the Roofer

Many/Most of the manufacturers offer a sheet metal that has a PVC skin cladding adhered to it, which is either offered already pre-bent for various flashing styles or sold as sheet goods to custom fabricate.

If the manufacturer offers it, it would be a warranted procedure.

Alternatively, their are dual cleat and snap on cover flashings for roof edge terminations such as gravel stops and coping caps.

If none of those, the the flashings get secured with termination bars approved by that particular manufacturer.

Ed

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Just Wait A Minute, I Will Be Right Back With A Link For That.
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Roof Estimates, Roof Repairs, Roofers, Roof Leak Help, Elgin, Carpentersville, East Dundee, West Dundee, Sleepy Hollow, Algonquin, South Elgin, Huntley, Lake In The Hills, Illinois

Grumpy

If it's clad metal it's welded. If it's bare or painted metal it'd adhered with manufacturer's suggested bonding adhesive.

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-Grumpy
Chicago Gutters Chicago Roofing

Tatnic

So if I wanted to build this prototype from scratch, I'd need some adhesive to bond the pvc membrane to the metal, and then a hand torch to weld pvc to pvc. The adhesive is what?

Grumpy

Each pvc membrane manufacturer makes their own bonding adhesive. It's a 2 sided contact cement type product, where you apply it to the bottom of the membrane and top of the substrate, allow it to cure for a few minutes until tacky then join the two surfaces together. That's a bond that will probably never break.

__________________
-Grumpy
Chicago Gutters Chicago Roofing