Gluing with silicone or acrylic: what works and what doesn't

Silicone and acrylic are two sealants that are quite similar in texture and appearance, and both of which can be used for gluing. Read what to look for when using both sealants.

Silicone and acrylic and their main properties

Silicone and acrylic are both very popular sealants that are used for grouting as well as for sealing and also for gluing. The consistency of both agents is still paste-like during processing, but rather rubbery when cured. Still, there are some differences between the two sealants. Acrylic can easily be painted over or. be painted over, which is not possible with silicone. In addition, both sealants have different properties when cured. Silicone remains permanently elastic and is water-repellent, whereas acrylic is less so. These different properties can also play a major role in gluing.

our recommendation

Knauf POWER-ELAST high-performance hybrid sealant for grouting connection joints -...
9.39 EUR To the product

Use acrylic and silicone for gluing

As adhesives both funds can be used. There are even different adhesives based on either silicone or acrylic. For example, acrylic can be used very well for compounds of styrene plates, as well as gluing plates and suction-free surfaces. Silicone and acrylic have different properties that can play an important role in gluing:

  • Acrylic is much less elastic
  • Acrylic can be overlooked
  • Silicone is water repellent and mushroom-retardant
  • Silicone is permanently elastic and crack-proof
  • Silicone has good temperature resistance

Glue with silicone and acrylic and what you should pay attention to

In principle, both sealants can also be used as adhesives. However, there are also different applications. Acrylic is very popular in the field of model making because it can be painted over without any problems and has very good adhesive properties. Silicone, on the other hand, is used wherever there is moisture and where the bond is exposed to a wide variety of weather conditions. However, you should not necessarily use the sealant where the joint has to withstand permanent vibrations or movements. Silicone in particular is not suitable for this. By the way, instead of the normal sealants, you can of course also use special adhesives that are based on acrylic or silicone and have much better adhesive properties.

our recommendation

Knauf Power-Kleber 480 g - Power-Adhesive, ready-to-use, one-component hybrid adhesive,...
12.69 EUR To the product