Address：No. 303 West Transit Road, Boshan District, Zibo City, Shandong Province, China

HT300 Gasket Maker RTV Silicone Sealant High Temp Red RTV Gasket Sealer Flexible Valve Cover Gasket Sealant for Automotive

Basic Information
Place of Origin: China
Brand Name: Useal
Model Number: HT300
Main Raw Material: Silicone
Usage: High temperature applications

MOQ: No minimum order quantity

Price: Negotiable

Delivery Time: 20-25 days

Payment: TT, L/C

Supply Ability: 1000000 pcs/ month

Classification：

Industry Market

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Description

Useal HT300 is a high-performance silicone sealant developed for sealing, bonding and repairing works where heat resistance is required. It is an ideal sealant for high temperature construction applications. It reacts with atmospheric moisture to produce a tough, elastic silicone.

Main Specifications

Basis	Silicone polymer
Curing System	Acetoxy
Density	1.05± 0.03 g/ml
Hardness Shore A	24-30 (after 28 days)
Tensile Strength	≥ 1.5 N/mm2 (23°C and 50% R.H) (ASTM D412)
Skin Formation	7-13 min. (23°C and 50% R.H)
Curing Rate	Min. 3 mm/day (23°C and 50% R.H)
Elongation At Break	≥ 250% (ASTM D412)
Elastic Recovery	≥ 60% (ISO 7389)
Sagging	0 mm (ISO 7390)
Temperature Resistance	-40°C to +300°C
Application Temperature	+5°C to +40°C

Features

● 100% silicone;

● One component;

● Acetoxy cure, RTV silicone;

● Will not crack, shrink or become brittle;

● Resists to mechanical enforcement after curing;

● Remains flexible at low (-40 °C) and high (+250 °C) temperatures;

● Excellent heat resistance after curing up to 250 °C permanently and up to 300 °C temporarily.

Applications

● Sealing chimneys;

● Sealing and bonding in stoves;

● Gaskets in pumps and motors;

● Sealing and bonding applications in automotives;

● On heating systems and ovens for sealing / tightness;

● Other bonding and sealing applications where parts must perform at high temperatures.

Color

Red, black, customized.

Packing

● 260ml/280ml/300ml/310ml cartridge;

● 85g toothpaste tube;

● As required.

Enterprise Strength

We're specialized in the production, research and development of various sealant adhesives such as polyurethane sealant, silicone sealant, PU foam, acrylic sealant, MS sealant, butyl sealant, hot melt adhesive and PVC sealant etc.. Our products have a wide range of applications, mainly used in building construction, automobile windshield industry, marine, rail transportation, containers, related machinery equipment, solar power new energy and other fields.

Qualification Certificate

1. We're the only original factory in China owning Sika formula for PU sealants. We also have multinational products equivalent to Bostik, Wacker.

2. Our company has passed the ISO 9001:2015 Quality Management System Certification, ISO 14001:2015 Environmental Management System Certification and IATF 16949:2016 Certification.

3. Our products have obtained REACH certificate and Intertek test.

Customer Feedback

Products are exported to all over the world, and trusted by customers. With the increase of import and export business, we established a subsidiary company Shandong Yunrun New Material Technology Co., Ltd in 2024. specializing in overseas import and export business.

Packaging & Shipping

Our company has advanced experimental and testing rooms; independent research and development and testing capabilities; two automated production lines and key production equipment imported from Italy to ensure stable product quality. With strong technical supports, we both have world class products comparable to Sika, Henkel and Bostik, also cost-effective products suitable for the public. Our production is flexible and fast, which can not only meet large orders, but also accept small quantities and special customized small batch orders.