Adhesives November 4, 2026 · 9 min read · 3 views

Foam adhesive for aerated blocks in winter: which one and how cold

How LACRYSIL foam adhesives differ in application temperature, how to fix foam and aerated blocks in the cold, and what foam adhesive does not replace.

Quick answer: LACRYSIL professional 60 Seconds foam adhesive is applied with a gun at -10°C ... +35°C, the household 60 Seconds version from -5°C. The professional 60 Seconds card gives a tack-free time of 3-5 minutes, so do not move the pressed element until the foam has set. The household tube version works from -10°C, the professional gun version without the 60 Seconds label only from +10°C. The household tube, professional and professional 60 Seconds cards list fixing foam and aerated blocks, but not as a load-bearing structure or a replacement for fastening.

Problem this material solves

Foam or aerated blocks need fixing in cold weather, and the foam adhesive is expected to behave as it does in summer.

Who it suits and where to use it

Choose by task, substrate, and operating conditions, not only by product name.

  • insulation boards and panels on facades and foundations
  • foam and aerated blocks
  • work with an applicator gun

Suitable

Not suitable / be careful

insulation boards and panels on facades and foundations

dirty, greasy, icy, or wet substrates

foam and aerated blocks

leaving cured foam unprotected from UV

work with an applicator gun

load-bearing masonry or replacing fastening required by the design

How to prepare the substrate

Clean surfaces from dust, grease, ice, and buildup. Application temperature for this product: -10°C ... +35°C; condition the can according to the product data.

How to apply step by step

Follow this order to avoid the usual mistakes:

  1. Shake the can well and attach it to the gun.
  2. Apply a 1-1.5 cm strip around the board perimeter, 3-5 cm from the edge.
  3. Add crosswise strips.
  4. Let the layer stand in air for as long as the instructions on the can say.
  5. Press the board to the substrate and do not move it until the foam sets: the card gives a tack-free time of 3-5 minutes.

Fixing aerated blocks in the cold

The application temperature on the product card decides what to use in the cold. Professional 60 Seconds and the household tube version are applied from -10°C, household 60 Seconds from -5°C, and the professional gun version without the 60 Seconds label only from +10°C. The can must be warm in any case: all three foam adhesive cards give a can temperature of +15°C ... +30°C, so keep it in a heated room until you start. More on working in frost: Expanding foam in winter.

  • clean dust, ice, and frost from the blocks and moisten the substrate only at positive temperatures
  • keep a spare can warm and swap out a can that has cooled down
  • foam adhesive fixes foam and aerated blocks, but it is not a load-bearing structure and does not replace fastening required by the design
  • cover cured foam in the joints with plaster or paint to protect it from UV

Database-backed specifications and variants

Data from LACRYSIL product cards and available packs:

Attribute

60 seconds professional adhesive foam

Household polyurethane adhesive foam

Storage term

18 months

18 months

Application temperature

-10°C ... +35°C

-10°C ... +35°C

Cylinder temperature

+15°C ... +30°C

+15°C ... +30°C

Full polymerization time

12 - 48 hours*

12 - 48 hours*

Base

foamed polyurethane composition

foamed polyurethane composition

Secondary expansion

100 - 150%*

150 - 250%

Tack-free time

3 - 5 minutes*

5 - 30 minutes**

Curing time

5 - 30 minutes*

0.5 - 6 hours

Task

Bond EPS/XPS insulation; Bond foam plastic; Bond aerated or foam concrete blocks

Bond EPS/XPS insulation; Bond foam plastic; Bond aerated or foam concrete blocks

Application method

Bonding a board 1000×1000, Ø30 mm envelope; Joint sealing

Bonding a board 1000×1000, Ø30 mm envelope; Joint sealing

Maximum joint depth

30 mm

30 mm

Active variants from the database

Product

SKU

Variant

60 seconds professional adhesive foam

LA-6SZ-TQA

Color: Turquoise; Packaging: 800 ml; Density: 20 kg/m³; Net weight: 0.715 kg

Household polyurethane adhesive foam

LA-HPT-NRA

Color: Orange; Packaging: 800 ml; Density: 30 kg/m³; Net weight: 0.615 kg

Professional polyurethane adhesive foam

LA-PPV-NRA

Color: Orange; Packaging: 800 ml; Density: 20 kg/m³; Net weight: 0.715 kg

Mounting foam cleaner

LA-CXY-TRA

Color: Transparent; Packaging: 500 ml; Density: 800 kg/m³; Net weight: 0.295 kg

Choose a pack size: 60 seconds professional adhesive foam

Common mistakes

These mistakes often ruin the result before the material can perform.

Mistake

How to avoid it

The layer did not stand in air.

Let it stand as long as the can instructions say.

The substrate was dusty or greasy.

Clean and slightly moisten it at positive temperatures.

The element was not fixed after pressing.

Do not move the element until the foam sets (3-5 minutes for 60 Seconds).

The cured layer was left exposed to sunlight.

Protect it with paint or plaster.

Why LACRYSIL fits this task

For this scenario, the main product is 60 seconds professional adhesive foam because:

  • the product card describes insulation, panel, foam block, and aerated block installation
  • the data includes application temperature, curing time, and secondary expansion
  • fresh residues can be removed with LACRYSIL mounting foam cleaner

Products, the catalog section, and a related article on this topic:

FAQ

How long does it dry?

The product card states: 12 - 48 hours*. Actual time depends on layer, substrate, and conditions.

What is the consumption or yield?

No separate consumption value is listed, so no invented figure is added.

Can it be used outdoors?

Yes. The product is described for indoor and outdoor work when conditions match the application temperature.

Can it be used in humid rooms?

Adhesive foam is not a final waterproofing layer. After curing, protect it from UV and open exposure.

Is primer needed?

A separate primer is not required in the product data, but cleaning and slight moistening at positive temperatures are important.

At what temperature should it be applied?

The professional 60 Seconds data gives an application temperature of -10°C ... +35°C. Household 60 Seconds is applied from -5°C, the professional foam adhesive without the 60 Seconds label from +10°C.

Fact check: This material is based on LACRYSIL product cards; unverified specifications were not added.

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