China 998 Neutral Silicone Weather Resistant Adhesive - China Suppliers and Factory, Room Temperature Cured, Versatile Building Material Adhesive Manufacturers, Manufacturer

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This product is a high-quality, single-component neutral silicone glass adhesive that cures at room temperature. As a reliable solution supplied by China’s leading manufacturers, it is easy to apply and non-corrosive to most building materials.

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Designed for versatility, this adhesive offers excellent bonding properties for various building substrates, making it a preferred choice for contractors and DIY enthusiasts alike. Our factory ensures strict quality control measures to maintain the effectiveness and safety of the product.

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Shelf life: 12 months

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Packaging: Available in 300ml packs with 24 pieces per box and soft pack options in 590ml with 20 pieces per box, catering to different project needs.

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Product Description

Characteristics

  • Easy to use: can be squeezed out for use at any time.
  • Neutral curing: Suitable for most building materials without producing adverse reactions or corrosive effects.
  • Excellent adhesion: No primer required, can form strong adhesion with most building materials.
  • Durable stability: Maintains good adhesion and elasticity after curing.
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Basic Use

Suitable for construction of sunrooms, daylighting roofs, stone materials, aluminum veneer, aluminum-plastic panel curtain walls, and large door and window projects.
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Restrictions on Use

  • All materials that exude oil, plasticizers, and other liquid organic substances are not suitable.
  • Not for use when surface temperatures exceed 50℃.
  • Cannot be completely sealed and isolated from air before solidification.
  • Not suitable for places damp all year round or submerged in water for long periods.
  • Not for areas subjected to excessive friction and physical damage like pedestrian walkways.
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Available Colors

This neutral silicone sealant is available in standard colors: Clear, White and Black. Custom colors can be provided according to specific project needs.

Neutral silicone sealant color options
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Storage and Expiry Date

Store in original packaging under dry and ventilated conditions at temperatures of 27℃ or lower. The storage period is 12 months.
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Technical Data

Maintains good viscosity between -25℃ to 50℃ for easy extrusion and use. After curing, it retains elasticity from -50℃ to 150℃. It is resistant to UV, rain, snow, ozone, and air pollution, ensuring long-term waterproof and sealing performance. Compatible with reflective glass, laminated glass, silicone insulated glass, acrylic, and polyethylene.

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Typical Applications

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Door and Window Installation Caulking, sealing, and bonding between frames and walls.
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Advertising & Models Making exhibition boards, sand tables, and high-quality models.
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Sound Insulation Filling gaps in voice rooms or broadcasting studios to silence noise.
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Gardening Lightweight bonding for gardening and landscaping projects.
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Daily Maintenance Repair of holes, wall tiles, floor tiles, and various gaps.
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Waterproofing Repair and plugging leaks in non-pressurized water pipes and sewers.

Frequently Asked Questions

Q What does "neutral curing" mean for this sealant?

Neutral curing means the sealant does not release corrosive by-products (like acetic acid) during the curing process. This makes it safe for sensitive materials like metals, stone, and coated glass.

Q Is a primer necessary for application?

No, this sealant is formulated for high adhesion and generally does not require a primer for most standard building materials, saving time and labor costs.

Q How does it perform in extreme weather?

It is highly weather-resistant. Once cured, it maintains its elasticity and seal in temperatures ranging from -50℃ to +150℃ and is unaffected by UV radiation or heavy rain.

Q Can I get this sealant in custom colors?

Yes. While Clear, White, and Black are standard, custom colors can be manufactured to match your specific project design requirements.

Q What are the storage requirements?

Keep the product in its original sealed container in a ventilated area at or below 27℃. It has a shelf life of 12 months from the date of manufacture.

Q Where should I avoid using this sealant?

Avoid use on materials that bleed oils or plasticizers, surfaces above 50℃, or in areas that are permanently submerged in water or subject to high physical abrasion.

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