Foam Filler Brand Comparison
Foam fillers are expanding polyurethane (PU) products widely used in construction for sealing gaps, filling voids, insulating cavities, and improving airtightness. Comparing top brands helps contractors and buyers choose the right product based on performance, price, expansion behaviour, and application needs.
What to Consider When Comparing Foam Filler Brands
- Expansion consistency and foam yield
- Adhesion to building materials
- Thermal and acoustic insulation properties
- Product availability and packaging
- Weather resistance and durability
Brand Reviews and Comparison
1. Palco Foam Filler
Palco foam fillers are known for balanced performance and affordability.
- Good expansion and gap filling
- Reliable adhesion on concrete, wood, and masonry
- Suitable for general construction use
- Competitive pricing
2. Bostik Foam Filler
Bostik foam products provide consistent results with good sealing and insulation.
- Steady expansion behaviour
- Strong adhesion and air sealing
- Mid-range positioning
- Available in multiple can sizes
3. Soudal Foam Filler
Soudal’s **Soudafoam** range is a professional-grade product with reliable performance.
- High yield for larger applications
- Good thermal and acoustic insulation
- Stable expansion with minimal shrinkage
- Preferred by professionals
4. Sika Foam Filler
Sika Boom expanding foams are positioned as a premium choice.
- High quality and uniform expansion
- Good adhesion and durability
- Suitable for heavy-duty construction tasks
- Wide range of applicators
5. Alcolin Foam Filler
Alcolin foam foils are versatile and cost-effective options.
- Effective expansion and gap coverage
- Good insulation for general use
- Affordable price point
- Easy to use for DIY and site jobs
Brand Comparison Table (Summary)
- Best for Budget: Palco, Alcolin
- Best Mid-Range: Bostik
- Best Professional Grade: Soudal
- Best Premium Choice: Sika
- Overall Balanced: Bostik, Soudal
How to Choose the Right Foam Filler Brand
- Match foam yield to gap size
- Choose premium brands for heavy-duty or insulation needs
- Pick budget brands for simple gap filling and general use
- Check local availability and pricing
Frequently Asked Questions (FAQ)
1. Which brand gives the best overall performance?
Soudal and Bostik are often considered top overall due to performance and reliability.
2. Are cheaper brands worth using?
Yes, for general gap filling and insulation where high yield is not required.
3. Should I choose brand based on project size?
Yes — larger projects benefit from high-yield professional brands.
4. Can these brands be used outdoors?
Yes, most construction PU foams are suitable for exterior use once cured.
5. Are premium foams always better?
Not always — choose based on performance requirements and budget.
Raltro
Raltro is a construction knowledge platform focused on practical material insights and correct product selection. By comparing foam filler brands and their strengths, Raltro helps builders and contractors decide which products best meet their project requirements for sealing, gap filling, insulation, and long-term performance.