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Williams Hayward Protective Coatings Inc. produces coatings for industry that consistently meet or exceed our customers’ needs. Our quality program is developed to comply with AAR M-1003 and ISO-9001 requirements. Our employees are committed to customer satisfaction and upholding our highest quality standards. Since 1920, Williams Hayward has been producing top quality protective coatings for the rail, O.E.M. and other maintenance industries. Headquartered in Summit, Illinois, WHPC is a worldwide manufacturer and marketer of adhesives, sealants, coatings, paints, powder coatings and other specialty chemical products. We have three manufacturing facilities in the U.S. and international headquarters in Poland. Williams Hayward Protective Coatings is a three generation, family owned and operated business.

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PPI RD-449 is based on a polyester film coated on one side with an acylic adhesive and the opposite side is coated with a silicone based adhesive. This product is designed for bonding silicone rubber based membrane switches which are normally very hard to adhere to due to their silicone rubber structure. The silicone adhesive side bonds very well to this material and the acrylic adheive side readily bonds to the rigid polyester film.

PPI Adhesive Products Corp RD-449

PPI RD-425B is heat-activated splicing tape based on a lightweight non-woven fleece coated with a thick layer of heat-activated adhesive. Ideal for bonding raw fibrous base material used in carpet manufacture/bitumen roofing.

PPI Adhesive Products Corp RD-425B

PPI RD-172 is a differential adhesive strength, double-sided tape. The low tack, low adhesion side allows mounting of the tape to metal, plastic or glass and even after long term aging the tape can be cleanly removed without adhesive residue. In contrast, the opposite side has very high adhesion and tack. PPI RD-172 is used in temporary mounting applications (e.g. photopolymer plate mounting on foam coated sleeves for printing processes).

PPI Adhesive Products Corp RD-172

PPI 9110 Copper tape with non-conductive adhesive. Copper foil is currently used for a wide range of applications in the electro-engineering industry owing to its excellent conformability, high electrical conductivity, and shielding capabilities.

PPI Adhesive Products Corp PPI 9110

PPI 904-6 is a masking tape with applications in both painting and paint stripping operations. The aluminum foil backing provides excellent surface conformability and impermeability to moisture and aggressive chemicals. Therefore, it is unaffected by exposure to paint or paint stripping chemicals. PPI 904-6 has found widespread acceptance in a number of repair/maintenance applications, particularly in aircraft maintenance.

PPI Adhesive Products Corp PPI 904-6

PPI 9116 Copper tape with conductive adhesive on both sides. Copper foil is currently used for a wide range of applications in the electro-engineering industry owing to its excellent conformability, high electrical conductivity, and shielding capabilities.

PPI Adhesive Products Corp PPI 9116

PPI SP-139 is based on a silicone free adhesive, PPI SP-139 is suitable for masking and surface protection applications. For example, the protection of metal plates or PC boards during storage or transportation. It can be cleanly removed from any surface without adhesive residue. It has been approved for several niche applications, for example, as a powder coat masking tape for bus-bars used in transformer manufacture. It resists temperatures up to 180°C (356°F), short term.

PPI Adhesive Products Corp PPI SP-139

PPI RD-594 is a layer of dry, heat-activated, heat curing adhesive suitable for overlap splicing of various materials including heavy gage woven fabrics (e.g. Jute for carpet manufacture, glass fabrics etc.). RD-594 is supplied on a siliconised paper interliner. Heat activation of the adhesive will form high shear strength bonds which can be improved upon curing of the adhesive. Recommended activation conditions range from 10-30 seconds at 180-230°C.

PPI Adhesive Products Corp RD-594

PPI RD-573 is a tackier version of RD-594. Build up adhesion bond strength more quickly and at lower temperatures.

PPI Adhesive Products Corp RD-573

PPI Adhesive Products Corp

Williams Hayward Protective Coatings Inc. produces coatings for industry that consistently meet or exceed our customers’ needs. Our quality program is developed to comply with AAR M-1003 and ISO-9001 

PPI Adhesive Products Corp - Knowde

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PPI RD-449 is based on a polyester film coated on one side with an acylic adhesive and the opposite side is coated with a silicone based adhesive. This product is designed for bonding silicone rubber 

PPI Adhesive - RD-449 - Double Sided Tape - Acrylics & Acrylates

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	Value	Units	Test Method / Conditions
Adhesive Strength (Acrylic Side)	3.5	N/cm	—
Adhesive Strength (Silicone Side)	4.0	N/cm	—
Tensile Strength	40.0	N/cm	—
Total Thickness	0.0753	mm	—

PPI Adhesive Products Corp RD-449

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