Wholesale Silicone Sealant for Refrigerator Repairs

Home / Product / Butyl Hot-melt Sealant
RT135 Butyl Hot-melt Sealant

RT135 Butyl Hot-melt Sealant

Detailed description:

With extremely low water vapor permeability, it is mainly used for the first sealing of multi cavity insulating glass;

Great adhesion, good adhesion with glass, aluminum alloy, galvanized steel, stainless steel, etc;

High aging resistance, good plasticity and sealing in a wide temperature range, no cracking and no hardness on the surface.

Product display

Application Area

It is applicable to the first sealing of insulating glass;

Basic sealing of glass curtain wall, refrigerator, freezer, etc.

Technical Indicators:

Project Technical indicators Test result
Penetration 1/10mm 25°C 35~55 42
130°C 210-350 248
Shear strength Standard test conditions, MPa ≥0.2 0.24
Change rate after UV treatment for 168h,% ≤20 3
Water vapor transmittance, g/(m²d) ≤0.3 0.10
Thermal weight loss% ≤0.75 0.12
Jiangsu Runtai Sealant Industry Co., Ltd.

Company Profile

A Mature Factory You Can Count On

As China Manufacturers of Silicone Sealant for Refrigerator Repairs and OEM Butyl Hot-melt Sealant Factory, Jiangsu Runtai Sealant Industry Co., Ltd. established in year 2001, is committed to becoming the best partner in the field of silicone sealant industry under the principle of credit management, brand reputation, ecological and environmental protection, and high quality and good price.
Located in Zhangjiagang, Jiangsu province, we are a professional enterprise engaged in the production of environmentally friendly decorative building materials, whose main products are numerous OEM color silicone sealant, polysulfide sealant, butyl rubber,etc.
The products are widely used in construction engineering, curtain wall structural assembly and sealing, insulating glass processing, indoor and outdoor decoration, etc.
We have an area of 28000 square meters with a production area of 25000 square meters and office area of 3000 square meters. Our company is in the hinterland of the Yangtze River Delta and near to Shanghai, Wuxi, Suzhou, Nanjing, enjoying convenient traffic.
We have twenty production lines with an annual output capacity of over 30000 tons. With very advanced production equipment and improved technology, we have realized full automated production.
Our company has ISO9001/ISO14001 standard system, and is Production Identification Enterprise of Silicone Structural Sealant by China Construction Metal Structure Association. We supply Butyl Hot-melt Sealant Wholesale, our products are rated as Green Building Materials Products. Some series of our products are also rated as Featured Products by Construction Curtain Wall Industry Assessment.
Since established, we have made stable sales network throughout domestic market and established long-term partner relationships with customers abroad. We will continue to innovate and develop, and adhere to the principle of good faith and quality, to be the first-class professional silicone sealant manufacturer in the world.

Our Strength

High standard factory

As Wholesale Butyl Hot-melt Sealant Suppliers, we have our own production workshops and warehouses, equipped with complete production and quality inspection equipment.

Quality Assurance :

We have our own testing lab and the most advanced and complete inspection equipment,which can ensure the quality of the products.

Jiangsu Runtai Sealant Industry Co., Ltd.
Jiangsu Runtai Sealant Industry Co., Ltd.

Support Customization :

We have a strong R&D team,and we can develop and produce products according to the requirements or samples the customers offered.

Diverse Products :

We have 22 advanced production lines, ,which enable us can develop and produce a lot of products with different technology data, different colors, different packages.

Jiangsu Runtai Sealant Industry Co., Ltd.
Jiangsu Runtai Sealant Industry Co., Ltd.

After-sale services :

We have professional sales team and technology team for after-sales.

Production Capacity :

Our annual production capacity is over 40000 tons,we can meet the needs of different customers with different purchase quantity.

Jiangsu Runtai Sealant Industry Co., Ltd.
Jiangsu Runtai Sealant Industry Co., Ltd.

Client Service :

We focus on developing high-quality products for top-end markets.Our products are in line with international standards.


  • honor
  • honor
  • honor
  • honor

Contact us


Industry knowledge

Production process and formula of Butyl Hot Melt Sealant

Butyl hot melt sealant is a type of adhesive that is commonly used for sealing joints and gaps in construction, automotive, and other industrial applications. It is made from a mixture of butyl rubber and various other additives that enhance its performance characteristics.
The production process of butyl hot melt sealant typically involves the following steps:
Mixing: The raw materials, including butyl rubber, tackifiers, plasticizers, and fillers, are mixed together in a high-speed mixer to form a homogenous blend.
Heating: The mixture is then heated in a reactor to melt the butyl rubber and create a homogenous molten mass.
Cooling: The molten mass is then cooled to the desired temperature to form a solid block.
Grinding: The solid block is then ground into small granules or chips.
Packaging: The granules or chips are then packaged in bags or drums for transportation and storage.
The formula of butyl hot melt sealant can vary depending on the specific application and performance requirements. However, a typical formulation may include the following components:
Butyl rubber: 60-80%
Tackifiers: 10-20%
Plasticizers: 5-15%
Fillers: 1-10%
Butyl rubber provides the adhesive properties and flexibility to the sealant, while tackifiers improve the adhesion and bonding strength. Plasticizers enhance the flexibility and durability of the sealant, while fillers provide viscosity control and improve other physical properties such as thermal stability and moisture resistance.

Application of Butyl Hot Melt Sealant

Butyl hot melt sealant is a versatile adhesive that can be used in a wide range of applications in various industries. Here are some of the common applications of butyl hot melt sealant:
Construction: Butyl hot melt sealant is commonly used in construction to seal gaps and joints in buildings, roofs, and other structures. It is especially effective in sealing metal roofs, skylights, and windows.
Automotive: Butyl hot melt sealant is used in automotive applications to seal windshields, sunroofs, and other windows. It is also used to seal car doors and trunks.
Electronics: Butyl hot melt sealant is used in electronics to seal and bond electronic components and devices. It is especially effective in sealing and protecting wires and cables.
Solar panels: Butyl hot melt sealant is used in the solar industry to seal and bond solar panels and other components. It is especially effective in protecting against moisture and UV radiation.
Packaging: Butyl hot melt sealant is used in packaging to seal and bond boxes and cartons. It is especially effective in sealing against moisture and other environmental factors.
Overall, butyl hot melt sealant is a highly versatile adhesive that offers excellent adhesion, flexibility, and durability. Its ability to seal against moisture and other environmental factors makes it a popular choice in many industries.