STP7.5 Tapered Silicone Plugs – 1.220" x 1.181" High-Temp Masking Plugs

The STP7.5 is a heavy-duty, high-temperature tapered silicone masking plug (STS1220x1181 series) used to seal very large-diameter threaded holes, ports, and bores during powder coating, sandblasting, and industrial finishing. It self-seals without adhesive and is fully reusable.

The STP7.5 belongs to the STS1220x1181 series, with a small-end diameter of approximately 1.220 inches and a length of approximately 1.181 inches. It is one of the largest tapered silicone plugs in the Creative Coating Solutions lineup.

The STP7.5 is rated for continuous high-temperature service up to approximately 400°F (204°C), compatible with all standard and extended powder coat cure cycles, industrial paint ovens, and blast finishing operations.

Yes. The STP7.5 is a universally compatible, large-format tapered silicone plug that works across all brands of industrial powder coating ovens, blast cabinets, and spray finishing equipment. No proprietary adapters are needed.

Press the large tapered end of the STP7.5 firmly into the oversized bore or port by hand. The taper self-seals without adhesive or tools. After the finishing cycle, pull free and inspect the plug for wear before reuse.

The STP7.5 is best suited for masking very large-diameter threaded ports and oversized bores in heavy fabrication, structural steel finishing, automotive frame work, and any industrial powder coating or blasting operation requiring a 1.220-inch-class tapered plug.

Purchase at creativecoatingsolutions.com/stp6. Priced at $27.29, the STP7.5 is in stock and ships quickly. Contact Creative Coating Solutions for bulk pricing and quantity orders.