Can we bond, seal and carry out repairs at low temperatures?
Yes, certain construction, installation and maintenance tasks can be carried out at low temperatures, but only with products suitable for these conditions. Before starting, check the permitted application temperature, prepare the substrate correctly and bear in mind that curing may take longer.
Can we bond, seal and carry out repairs at low temperatures?
Yes, certain construction, installation and maintenance tasks can be carried out at low temperatures, but only with products suitable for these conditions. Before starting, check the permitted application temperature, prepare the substrate correctly and bear in mind that curing may take longer.
It is important to distinguish between the application temperature and the temperature resistance of the cured product. A product’s resistance to cold after curing does not necessarily mean that it can be applied at temperatures below freezing.
How do low temperatures affect bonding and sealing?
At low temperatures, some materials become more viscous, cure more slowly and have greater difficulty adhering to the substrate. Condensation, water, snow and ice can also cause problems.
Before use, check:
- the temperature of the air, product and substrate,
- the permitted application temperature,
- the condition and cleanliness of the substrate,
- the expected curing time.
The substrate must be sound and free from ice, snow, standing water, dust, grease and loose particles.
Which PU foam can be used at sub-zero temperatures?
For installing windows and doors, filling construction gaps and insulating in winter conditions, use TKK PU FOAM TOP FOAM WINTER.
TKK PU FOAM TOP FOAM WINTER
This one-component polyurethane foam is designed for use at temperatures as low as -10 °C. It adheres well to common construction materials and provides a strong bond and good insulation once cured.
It is suitable for:
- installing windows and doors,
- filling construction gaps,
- insulating plumbing and heating systems,
- fixing components in electrical installations and ventilation systems.
Before use, bring the can to the appropriate temperature in accordance with the manufacturer’s instructions. Do not heat it with an open flame or on hot surfaces. Protect the cured foam from UV light.
Can PU adhesives be used in colder weather?
PU adhesives may only be used within the temperature range specified in each product’s technical data sheet.
For fast, strong bonding of various construction and insulation materials, use TKK PU FIX FAST FIXING ADHESIVE.
TKK PU FIX FAST FIXING ADHESIVE
This low-expansion polyurethane adhesive adheres well to brick, concrete, aerated concrete, stone, wood, OSB boards, plasterboard and insulation materials. It allows precise application, reduces material consumption and helps complete work more quickly.
As it cures with moisture from the air, curing may take longer at lower temperatures. Before application, remove ice, snow, dust and grease. Secure or support the bonded components during curing where necessary.
Which sealant should you choose for exterior joints?
TKK SEAL FLEXIBLE JOINTS WALL is suitable for permanently elastic sealing of interior joints and façade joints exposed to the weather.
TKK SEAL FLEXIBLE JOINTS WALL
This hybrid sealant adheres well to most construction materials and is resistant to weathering, UV light and ageing. It is suitable for sealing façade joints, penetrations and joints around windows and doors, as well as for minor leak repairs.
It can also be applied to damp surfaces, which is a particular advantage in autumn and winter. However, the substrate must not be frozen or covered with snow or standing water.
Which product should you choose?
| Task | Recommended solution | Important |
|---|---|---|
| Installing windows and doors | TKK PU FOAM TOP FOAM WINTER | Use at temperatures as low as −10 °C. |
| Filling gaps | TKK PU FOAM TOP FOAM WINTER | Protect the foam from UV light. |
| Bonding construction materials | TKK PU FIX FAST FIXING ADHESIVE | Check the application temperature. |
| Sealing exterior joints | TKK SEAL FLEXIBLE JOINTS WALL | The substrate must not be frozen. |
How should work be carried out in winter?
Before starting, check the technical data sheet and the temperature of the air, product and substrate. Store products in accordance with the instructions and allow for potentially longer curing times.
If conditions do not meet the manufacturer’s requirements, postpone the work. Choosing the right product cannot compensate for an inadequately prepared or frozen substrate.
Frequently asked questions
Can standard PU foam be used at −5 °C?
Only if the technical data sheet explicitly permits it. TKK PU FOAM TOP FOAM WINTER is designed for winter conditions and can be used at temperatures as low as −10 °C.
Does resistance to cold mean that a product can be applied below freezing?
No. The temperature resistance of the cured product and the permitted application temperature are two different specifications.
Can sealant be applied to a damp surface?
TKK SEAL FLEXIBLE JOINTS WALL can also be applied to damp surfaces, provided they are free from ice, snow and standing water.
Many tasks can be completed efficiently and reliably even in colder weather. The key is to choose the right product, prepare the substrate properly and follow the technical instructions carefully.
Explore TKK solutions for bonding, installation and sealing.
