has some good info on heat sealing and gluing.
Edit: where's my manners: Great work, thank you!
Heat sealing - tricky, they prefer certain un-corona'd styles of tyvek and/or a 'branched polyethylene' coating first.
Glueing - they have a list of glues. They mention that low-molecular weight glues can infiltrate and wrinkle the tyvek in high temps. No mention of strength being affected.
Quote from Dupont Industrial Packaging:"
...Please contact us for a list of solvents that are preferred for use with Tyvek® (ask for the "Product Properties & End-uses Handbook").
Natural-product adhesives based on starch, dextrin, casein or animal by-products are preferred to synthetic-based adhesives. Synthetic adhesives often contain low-molecular-weight materials that can act as solvents at elevated temperatures and cause swelling and wrinkling. Hot animal glue is an excellent adhesive for adhering Tyvek® to paperboard. Water-based synthetic lattices also bond Tyvek® to itself and a variety of substrates. Ethylene/vinyl acetate adhesives are especially useful, as are the acrylic pressure-sensitive adhesives. Solvent-based single-component polyurethane adhesives provide optimum adhesion (lap and shear), flexibility and water-resistance for adhering Tyvek® to itself and a variety of substrates.
Hot-melt adhesive technology has been amply demonstrated in a number of applications involving Tyvek®, in.............."