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Sealing methods for poly

Sealing methods for poly

Sealing methods for poly

(OP)
Can any one suggest me some sources which describe in detail sealing of plastics especially polycarbonate,PMMA,PVC

RE: Sealing methods for poly

I assume you're talking about solvent welding, not welding with heat and pressure.  Polycarb and acrylic are usually welded with a dichloromethane containing compound that contains some of the plastic monomers.  PVC uses a solvent that cleans this plastic first then some MEK to weld it together.  Check out the individual plastic manufacturers' or solvent manufacturers' web sites.  This is also a good resource: www.specialchem4adhesives.com.

Hope that helps.

RE: Sealing methods for poly

Eltron, what about welding 2 PS parts? What solvent would you use. Does the dichloromethane works too?

Thanks

RE: Sealing methods for poly

I assume that by "PS" you mean polystyrene.

Solvent welding with methyl ethyl ketone (MEK) or toluene is the most economical. Next least expensive is a hot melt adhesive such as ethylene vinyl acetate (EVA) or ethylene acrylic acid (EAA). The most expensive would be an adhesive such as cyanoacrylate glue.

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