Alcoa Inc.'s Cast Plate Division has a new cast aluminum plate that allows weld modifications in molds. Alca Max has minimal plate porosity, making it resistant to post-weld cracking, the Los Angeles division claims.
It also maintains flatness tolerance to 0.005 inch after sawing. It is suited to injection, blow and compression molding applications.
Tel. (800) 821-2522, fax (800) 532-8987.
GLS Corp. introduced a soft, high-clarity thermoplastic elastomer for medical tubing, clear grips and handles and flexible lenses.
The Cary, Ill., firm's Dynaflex G-2735 has 35 Shore A hardness. GLS claims it has better light transmittance and lower haze characteristics than standard soft, clarity-grade TPEs.
Like other G-2700 TPEs, the product can be radiation sterilized with little color shift or loss of properties.
Tel. (847) 516-8300, fax (847) 516-8361, e-mail [email protected]
Cadillac Plastic offers a new rigid polyurethane plug-assist material for deep-draw and other difficult thermoforming operations.
It touts Formplast 2000 as a tough alternative to syntactic foam, wood and aluminum plug assists.
Its low thermal conductivity eliminates the need for plug heating, thus saving on operating costs, the Troy, Mich., distributor claims.
It is available in rod and plate forms.
Tel. (800) 488-1200, fax (810) 583-9275.
MTC America Inc. has more grades of Aurum thermoplastic polyimides that can be injection molded or extruded into high-performance parts.
The Purchase, N.Y., firm said its Aurum JGF 3045, lubricated with fluoropolymer, excels in wear and friction applications. JCQ 6225, with heat distortion temperature above 500§ F, suits oil seal rings.
JGN 6230 is aimed at structural and thermal insulation uses such as connectors and jet engine components.
Tel. (800) 682-2377, fax (914) 253-0790.
DeWal Industries Inc. claims uniform z-axis pore size for its new ultrahigh-molecular-weight polyethylene film. A spokesman said the product can be folded and creased because it is not brittle like most porous UHMWPE films.
The Saunderstown, R.I., company said D/W 402FP is suited to filtration, medical diagnostics and as a diffusion membrane. Untreated, it will readily bind oils. DeWal also offers it in a hydrophilic form so that it can wick aqueous solutions.
The film is supplied with mean pore size of 4.5 microns and 7 microns in thicknesses of 0.003 inch to 0.05 inch. DeWal makes it in a proprietary skiving process in which it peels the film off in layers from a porous cylinder.
Tel. (401) 789-9736, fax (401) 783-6780.
BFGoodrich Specialty Chemicals targets its six new Stat-Rite compounds for clean-room applications requiring permanent static-dissipative properties.
The Cleveland-based company debuted two polyether-based thermoplastic polyurethanes, a polyester-based TPU, an ABS type, a glycol-modified PET grade and a glass-filled polybutylene terephthalate in its Stat-Rite line.
The products are suited to extrusion and other thermoplastic processing.
Tel. (216) 447-5000, fax (216) 447-5750.
