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Indoor Silicone Sealant

Your Professional Indoor Silicone Sealant Supplier

Star Bright is a professional manufacturer and supplier of surface protection and finishing solutions. Our main products include protection films, powder coatings, silicone sealants, and polishing machines. These products are widely used in construction, metal processing, aluminum profiles, industrial manufacturing, and daily applications.

Strict Quality Control

Our products follow international standards such as ISO 9001, ISO 14001, RoHS, and REACH. Every product is carefully inspected before shipment.

Flexible OEM & ODM Service

We support OEM and ODM customization for packaging, logo, product specifications, and branding to meet different market and customer requirements.

Professional Customer Support

Our experienced sales and technical team provides fast communication, sample support, after-sales service, and efficient solutions for global business partners.

Stable Supply Capacity

We maintain efficient production lines and steady raw material sourcing to ensure on-time delivery and consistent supply for global long-term cooperation.

Specification

Appearance	Black, Grey, homogeneous paste
Sagging properties(mm)	GB/T 13477.60
Tack free time(min)	GB/T 13477.5 35, approx.
Curing speed(mm/d)	HG/T 4363 3.2, approx.
Non-volatile contents ( %)	GB/T 2793 97, approx.
Shore A-hardness	GB/T 531.1 55, approx.
Tensile strength(MPa)	GB/T 528 2.5, approx.
Elongation at break(%)	GB/T 528 600, approx.
Operating temperature(C)	-40~90

Advantages of Indoor Silicone Sealant

Excellent Weather Resistance
One of the key advantages of silicone sealants is their exceptional weather resistance. Silicone is highly resistant to UV radiation, extreme temperatures, and harsh weather conditions. This makes silicone sealants ideal for exterior applications, such as sealing gaps around windows, doors, and other building materials.

Superior Flexibility And Movement Accommodation
Silicone sealants offer excellent flexibility and movement accommodation, making them suitable for applications where substrate movement is expected. Construction materials expand and contract due to temperature changes or structural shifts, and silicone sealants can accommodate this movement without compromising their adhesion or sealing capabilities.

Exceptional Adhesion To Various Substrates
Silicone sealants exhibit excellent adhesion to a wide range of substrates commonly found in construction, including glass, metal, concrete, wood, and plastics. This versatility allows silicone sealants to be used in various applications, such as sealing joints, bonding materials, and adhering components.

Good Resistance To Moisture And Chemicals
Silicone sealants suppliers are made inherently moisture-resistant, providing an effective barrier against water infiltration. This makes them suitable for sealing applications in areas prone to moisture, such as bathrooms, kitchens, and exterior surfaces exposed to rain and humidity.

Longevity And Low Maintenance
Silicone sealants have a proven track record of long-term performance and durability. They maintain their sealing properties over an extended period, reducing the need for frequent repairs or replacements. This results in lower maintenance costs and fewer disruptions to ongoing construction projects.

Wide Range Of Colors And Aesthetics
Silicone sealants are available in a wide range of colors, allowing them to blend seamlessly with the surrounding materials and aesthetics of the construction project. This aesthetic versatility makes silicone sealants suitable for both functional and decorative applications.

Applications of Indoor Silicone Sealant

Sealing gaps in your home
Cracks and gaps can hurt your home’s energy effectiveness as cool air seeps in and warm air sneaks out. In addition to weather, gaps can also allow pests to enter your home. A solid all-purpose sealant helps plug in those holes.

Preserving bathroom appliances
Protect your bathroom appliances from moisture, bacteria, and mould by sealing all gaps with silicone sealant. The waterproof formula of the sealant will fight off the moisture without taking a hit in its security. In addition, its flexibility allows room for movement, especially around the toilet and pipes.

Protecting kitchen appliances

The kitchen is another hot spot for moisture, which can lead to bacteria and mould. Silicone sealant’s mould-resistant formula helps prevent that growth. Its strong, flexible seal also holds up to the continued wear and tear of kitchen use thanks to its flexibility and waterproof formula.

Strengthening outdoor spaces

Silicone sealant is a reliable outdoor sealant as well as an indoor staple. Its flexibility and waterproof formula can help protect concrete cracks, chips in tiles, and holes in the wall. It will fill in those spaces, giving those items new life and strength.

Completing DIY projects

All-purpose sealants aren’t limited to home repairs. Sealants are very flexible, which also makes them ideal for crafting. Silicone might be your best option if you need a strong, flexible seal. You can use it for anything from weather-proofing outdoor décor you create to protecting bathroom furniture you DIY’d.

Comparison Of Indoor Silicone Sealant With Other Common Sealants

PROPERTY	SILICONE SEALANT	ACRYLIC SEALANT	POLYURETHANE SEALANT
Flexibility	Excellent, long-term elasticity	Limited	Good
UV Resistance	Outstanding	Poor	Moderate
Waterproofing	Excellent	Moderate	Excellent
Durability	20+ years	Short-term	Medium to long-term
Movement Capability	Very high	Low	High
Maintenance Needs	Low	High	Medium
Exterior Use	Ideal	Not recommended	Suitable

Precautions for Using Indoor Silicone Sealant

Prepare the Surface
Clean and dry the area thoroughly to remove dust, grease, or moisture. Use rubbing alcohol or an appropriate cleaner to ensure a strong bond.

Choose the Right Sealant
Match the sealant type to your project. For instance, use a mildew-resistant silicone for bathrooms or high-temperature silicone for stoves.

Use Masking Tape for Clean Lines
Apply masking tape on either side of the joint to achieve neat and professional-looking results. This will also prevent smudging.

Cut the Nozzle at an Angle
Cut the tip of the sealant nozzle at a 45-degree angle to control the bead size and ensure precision during application.

Apply Even Pressure
Use a caulking gun for consistent and even application. Move slowly and steadily along the joint to prevent gaps or uneven coverage.

Smooth the Sealant Bead
Use a sealant finishing tool or your finger (dipped in soapy water) to smooth out the bead for a polished look.

Allow Proper Curing Time
Silicone sealants typically require 24-48 hours to cure fully. Avoid touching or exposing it to water during this period.

Customizable Options

Color Options	Clear / White / Black / Grey / Custom
Package Size	280ml / 300ml Cartridge / 590ml Sausage

Packaging and Shipping

Packaging

Inner Packing: Plastic cartridge or foil sausage, soft tube

Outer Packing: Carton box for small rolls,corrugated paper for jumbo rolls ,water-proof film wrapped on the pallet

Shipping

Sea Freight, Express Delivery (DHL, UPS, FEDEX,TNT, EMS)

Shipping Time

Courier shipping, around 3-4 working days

Sea: Around 4 weeks to arrive(depending on destination port)

Loading Port: Shanghai or Ningbo Port, China

Indoor Aluminum Bathrrom Silicone Sealant

Our Service

● Provide best services during and after-sales, professional sales team online to reply your inquiry immediately.

● We take care of every detail of the complete business transaction from the beginning to the end.

● Our QC department has strict inspection on all the products before shipping.

● For any complains, we will give reply and deal with it in 1 day.

● We have the samples for you to evaluate our products and welcome you to visit our factory and check by yourself.

FAQ

Q: What is the difference between indoor and outdoor silicone sealant?

A: Indoor silicone sealant is designed for controlled environments like homes, while outdoor types resist UV rays, rain, and temperature changes. Indoor silicone sealant focuses more on clean finishing and odor control, making it ideal for interior applications rather than harsh outdoor exposure.

Q: Can indoor silicone sealant be removed easily?

A: Indoor silicone sealant can be removed using a scraper or sealant remover solution. Once softened, it can be peeled away from surfaces. Indoor silicone sealant may require careful cleaning to fully remove old residue before applying a new layer for best adhesion.

Q: How long does indoor silicone sealant last?

A: Indoor silicone sealant can last 10–20 years depending on conditions and usage. High-quality products maintain flexibility and adhesion over time. Indoor silicone sealant resists aging, cracking, and moisture damage, making it a long-term solution for indoor sealing needs.

Q: Can indoor silicone sealant prevent mold?

A: Yes, many indoor silicone sealant products include anti-mold additives. These help resist mold growth in humid areas like bathrooms and kitchens. Indoor silicone sealant protects sealed joints from moisture buildup, reducing the chance of black spots and bacteria forming over time.

Q: Is indoor silicone sealant waterproof?

A: Yes, indoor silicone sealant is highly waterproof once fully cured. It is designed to resist water exposure in areas like bathrooms, kitchens, and laundry rooms. Indoor silicone sealant prevents leaks and water damage by forming a tight, flexible seal that does not break down easily in wet environments.

We're well-known as one of the leading indoor silicone sealant manufacturers and suppliers in China, also support customized service. Please feel free to buy high quality indoor silicone sealant made in China here from our factory.

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