STP 6.5 Tapered Silicone Plugs – 1.062" x 0.984" High-Temp Masking Plugs

The STP 6.5 is a large-format, high-temperature tapered silicone masking plug (STS1062x0984 series) used to seal oversized threaded holes, ports, and bores during powder coating, sandblasting, and industrial finishing. Its tapered profile self-seals without adhesive and is fully reusable.

The STP 6.5 belongs to the STS1062x0984 series, with a small-end diameter of approximately 1.062 inches and a length of approximately 0.984 inches. This makes it suitable for sealing large-diameter bores in heavy industrial and fabrication applications.

The STP 6.5 is rated for continuous high-temperature use up to approximately 400°F (204°C), compatible with standard and extended powder coat cure cycles as well as industrial paint and blast finishing operations.

Yes. The STP 6.5 is a universally compatible large-format tapered silicone plug that works across all major blast cabinet and powder coating oven brands. It requires no proprietary accessories.

Insert the tapered end of the STP 6.5 into the large bore or port and press firmly by hand. The taper provides a secure, self-sealing lock. After the finishing cycle, pull the plug free and check for wear before reuse.

The STP 6.5 is best suited for masking large-diameter holes and ports in heavy fabrication, industrial finishing, and powder coating operations where standard smaller plugs are too small to achieve an adequate seal.

Order at creativecoatingsolutions.com/stp4. Priced at $104.93 per pack, the STP 6.5 is in stock. Contact Creative Coating Solutions for bulk orders or volume pricing.