Why professional joints matter
Clean, elastic joints protect substrates from moisture and handle building movement without cracking. Around Steinhausen we ensure two‑sided adhesion, correct joint geometry and a crisp finish – fully documented.
Common failure patterns
- Adhesion loss: poor prep/missing primer.
- Shrinkage: wrong geometry/insufficient depth.
- Mould: persistent moisture or wrong product.
- Colour mismatch: visually noisy result.
Early replacement prevents costly damage.
Applications
Interior
Bathrooms/showers, kitchens, window finish joints, floor/wall joints.
Exterior
Façades, balconies/terraces, plinths. UV‑stable systems required.
Step by step
- Assessment: width/depth, substrate, movement.
- Masking & surface protection.
- Removal of old sealant; clean/degrease.
- Backer rod sized for two‑sided adhesion.
- Primer per system.
- Application & geometry by detail.
- Tooling/finish & photo report.
Materials compared
- Sanitary silicone: very elastic, mildew‑resistant; not paintable.
- Hybrid: wide adhesion, sometimes paintable; robust outdoors.
- PU: strong for more structural connections.
Colour & finish
Tone‑in‑tone and crisp edges deliver a calm, premium look.
Quality & documentation
- Photo report with details
- Batch/primer/backer rod recorded
- Handover with care guidance
Case study Steinhausen
Old joint removed, bond faces prepared, correctly sized backer installed, primed as required and sealant tooled evenly. Result: tight, clean joints with a consistent colour.
Frequently asked
Service life?
Typically 5–10 years, depending on use, material and care.
When usable again?
Skin after 10–30 min; full cure 12–48 h depending on system.
Paintable?
Silicone no; hybrid/PU sometimes.
Standards?
Execution per manufacturer guidance and applicable EN/SIA.
Video
About the clip
Shown: removal, cleaning, priming, application, tooling. Times/materials depend on the project – see the report.
Gallery
Facts
Industry
Roof
Location
Steinhausen
Systems
Hybrid, silicone, PU
Execution & documentation
Assess substrates, mask precisely, prime per system, extrude evenly and tool cleanly. Documented with batch numbers and detail photos.
Tips & tricks
- Squeegee & ventilate
- Mild cleaners
- Don’t paint over joints
- Keep movement joints clean
