Frequently asked questions about the Other sealing masses category
What are Other sealing masses and what are they used for?
Other sealing masses are universal sealants and polyurethane mastics used to seal joints, seams and cracks in construction and repair works. The category includes Soudaflex, Sikaflex, Bostik and Soudal products in 70–600 ml cartridges and 0.6 L cans, suitable for windows, doors, concrete and sanitary applications.
How do Sikaflex polyurethane sealants differ from Soudal Easy Sanitarne silicones?
Sikaflex polyurethanes (e.g. 291i) provide high shear strength and good adhesion to concrete and metal, suited for moving joints; Soudal Easy Sanitarne (2x290 ml) is formulated for wet rooms, includes antimicrobial additives and better mould resistance.
What packaging sizes are available in the Other sealing masses category?
The category offers cartridges and tubes from 70 ml up to 600 ml (e.g. Sikaflex 70–300 ml, Soudal Multibond 600 ml) and Bostik PU in 0.6 L cans. Choose size based on joint length and number of applications.
What colours are available — are they suitable for white plastic windows?
Available colours include white, grey, black and brown (Sikaflex white/black, Soudaflex grey, Bostik brown). For white plastic windows choose white sealants such as Sikaflex 291i or Soudal Easy Aknad & Ukse in white.
Which sealants are best for exterior work and resistant to frost and sun?
For exterior joints choose polyurethane sealants like Sikaflex and Soudaflex, which resist UV and weathering. Examples include Sikaflex 291i and Soudaflex 40FC available in 300 ml and 600 ml packs.
Can Bostik polyurethane mass be used to glue panels and boards?
Yes, Bostik PU-MASS (0.6 L) can be used as an adhesive and sealant for fixing panels and lightweight boards, provided the substrate is clean and sound. Follow surface preparation and curing guidance.
Which sealant to choose for sealing joints between concrete and metal?
For concrete–metal joints choose polyurethane sealants like Sikaflex 291i or Soudaflex for strong adhesion and elasticity under movement. Use 300 ml cartridges for small jobs and 600 ml for larger volumes.
How to prepare the surface before applying a sealant from this category?
Surface must be clean, dry and free of dust; remove oil and old sealant residues and treat rust if present. For porous substrates use the primer recommended by the specific manufacturer (Sikaflex, Soudal, Bostik).
Which sealants are suitable for aquariums or constant water contact?
Soudal Easy Sanitarne is formulated for wet rooms, but aquariums require dedicated aquarium silicone; this category mainly contains polyurethanes and general sanitary sealants, so always check the product label for water resistance and aquarium safety before use.
Which sealant is better for windows and doors — Soudal Multibond MS35 or Soudaflex 40FC?
Soudal Multibond MS35 (600 ml) is a universal MS-polymer with good adhesion often without primer; Soudaflex 40FC (300 ml) is a polyurethane elastic sealant with high durability. Choose Soudaflex for exterior moving joints and Multibond for mounting and bonding tasks.
New Arrivals in the Other sealing masses Category in 2026
Best sellers in the Other sealing masses category in 2026
Cheap products in the Other sealing masses category
- PENOSIL PARKETIKITT LEPP,KUUSK — 4.09€
- PENOSIL PARKETIKITT MAHAGON — 4.09€
- PENOSIL PARKETIKITT PÖÖK 310ml — 4.09€
- PENOSIL PARKETIKITT PUN.LEPP — 4.09€
- PENOSIL PARKETIKITT Oak 310ML — 4.09€
Expensive products in the Other sealing masses category
- PENOSIL WATERSTOP MASTIKS 1L — 21.02€
- ISOLEERIMISTEIP BISON RUBBER SEAL 7.5cmx5m — 17.11€
- ISOLEERIMISMASTIKS BISON RUBBER SEAL 750ml — 16.70€
- SOUDAL GASKETSEAL BS 280ML — 16.14€
- PENOSIL SILIKOON MOTOR PUNANE — 13.34€
Price of products in the Other sealing masses Category
Other sealing masses: 3.30€ — 16.95€ (39)