Nowadays, when the quality of construction and construction is increasingly prioritized, supporting materials such as silicone sealant, polyurethane glue, especially blooming foam glue, play an extremely important role in ensuring durability, waterproofing, sound insulation, heat insulation and improving the life of the building. Among them, the PU Selsil expansion foam glue product line is the first choice of many contractors and construction engineers in Vietnam. So, what is PU Selsil Expansion Foam Glue? Why are they so popular and widely used? Let’s find out in detail with Thuan Thien Thanh in the following article.
- Introduction of Blooming Foam Glue
1.1 Definition of Foam Glue Expansion
Foam Expansion Glue is a special form of construction glue, developed with polymer component technology that has the ability to foam and swell when exposed to air moisture. The swelling property helps the glue create a porous foam layer, effectively filling gaps, small cracks, and gaps between building materials – which are difficult to access during conventional construction.
- Foam Expansion Glue – Quality product from SelSil brand
Selsil Blooming Foam is a high-quality Polyurethane (PU Foam) baking foam product specializing in construction, which has been distributed by Thuan Thien Thanh Company – a reputable distributor of leading silicone sealants and PU Foam in Vietnam. This product fully meets the standards of quality, durability, and adaptability in a variety of harsh environments
Outstanding advantages of Selsil blooming foam glue
- Outstanding swelling: The product can expand many times the original volume, helping to completely fill even very small cracks and gaps that are difficult for the naked eye to recognize.
- Good waterproofing and moisture resistance: After drying, the adhesive layer forms a shield that prevents water, air and even insects from entering the structure.
- Heat resistance, UV resistance, non-aging: Stable heat resistance
- Adhesion & Solid Structure: Strengthen the bonding of structures, prevent skidding, open circuits.
- Fast construction: Simple operation, saving time and labor costs.
- Versatile: Excellent adhesion to most building materials and is heavily used in other construction items
- Selsil blooming foam glue lines available in Thuan Thien Thanh
To meet a variety of construction needs and strict technical standards, Thuan Thien Thanh provides 2 lines of specialized PU Selsil expansion foam glue, suitable for many construction, repair and installation items.
3.1. Selsil B1 Fire Resistant Foam
Selsil B1 Fire Resistant Foam is a 1-component Polyurethane expansion foam adhesive that works on a reaction to air moisture, self-expands and dries without heating. The biggest strength of this foam line is its ability to resist fire spread, helping to improve the level of safety for buildings with high fire protection standards.

Highlights:
- The ability to resist fire spread is up to standard, suitable for the construction of items that require high safety standards.
- Outstanding heat and sound insulation.
- Bottle with pre-sprayed nozzle, easy to operate.
- Does not contain CFC or H-CFC gas
Practical Application:
- Fill the gaps between walls and fireproof door frames of all kinds.
- Assembling cold storage panels.
- Fill and connect the openings between the wall and the pipes through the wall.
How to use
- Step 1: Clean the construction surface, remove dirt, grease in the area that needs to be sealed or filled.
- Step 2: Shake the glue bottle at least 20-30 times before using
- Step 3: Install the spray nozzle or attach it to a specialized foam gun (if using a gun).
- Step 4: Spray evenly and gently into the gap or location to be filled. Spray just enough, as the glue will expand on its own and fill completely after a few minutes.
Note: Wear gloves, masks, and goggles when applying, avoid getting the foam on the skin or eyes.
3.2. Selsil Montage Foam (Normally non-flame retardant)
Selsil Montage Foam is a one-component line of Polyurethane expansion foam adhesives, designed to efficiently handle gaps and joints in interior construction and installation. Thanks to its good sound insulation, heat insulation and waterproofing, this product is increasingly trusted in many residential and industrial categories.
Currently, Montage Foam is available in two convenient forms: a direct spray bottle or a type used with a specialized foam pump gun, suitable for both professional workers and self-construction users.


Selsil blooming foam glue is an indispensable utility material for modern projects, trusted by its flexible construction features, ease of use and long-term effectiveness. Thanks to its good adhesion, even expansion and filling of gaps, Selsil offers the optimal solution for a wide variety of needs – from installation, maintenance to interior finishing.


Specifically, the product is often applied in the following categories:
- Filling gaps, joints, cracks: Especially effective at the locations adjacent to the wall with the door frame, corrugated iron roof, expansion joints of panels, cracks in concrete walls, cracks in the floor, etc.
- Sound insulation, heat insulation: Ideal for conference rooms, offices, studios that need noise insulation; factories and houses need to be insulated to avoid heat loss.
- Waterproofing: Filling locations that are often exposed to rainwater, protecting the building from mold – the leading cause of rapid deterioration of the building.
- Increase structural bonding: Increase the rigidity between concrete panels, bricks, and beams, making the project more solid and sustainable.
- Multi-material application: Good adhesion to concrete, brick, steel, aluminum, plastic, wood, glass – suitable for many items.
- Used in repair: Sealing door gaps, corrugated iron roof arches, gaps between old components
- Instructions for proper storage of blooming foam glue
To ensure that Selsil blooming foam glue always maximizes its use and maintains stable quality, customers and partners need to note:
- Store in a cool, dry place: Avoid high temperatures, avoid direct sunlight
- Keep out of reach of children
- Avoid exposing the glue to moisture and water: When not in use, if the glue is damp, it may self-expand or “die the glue”, reducing the effectiveness of use.
- Handle if it comes into contact with skin/eyes: If the glue accidentally gets into the skin, wash immediately with clean water and soap; If it gets in your eyes, wash your eyes immediately and go to the nearest medical facility.
Selsil blooming foam glue is an effective solution to help overcome all gaps, enhance waterproofing, sound insulation, and heat insulation for modern construction projects. The product is easy to construct, durable, safe, suitable for many different construction items. If you need advice on silicone sealants, PU Selsil expansion foam glue or want to learn more about practical applications, please contact Thuan Thien Thanh Trading-Service-Production Co., Ltd. immediately for the most dedicated and fast support!
Quick Order – Free Consultation:
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- 📞 Hotline: (028) 3948 17 17
- ✉️ Email: tkkd1.thuanthienthanh@gmail.com
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