Heavy duty assembly adhesive



  • Easy to use
  • Mounts mirrors permanently
  • Remains flexible-will not flake or become brittle

MAKROFLEX MF930 Mirror Mastic is high performance adhesive formulated especially for mounting mirrors to all types of interior surfaces, such as wood, drywall, metals and painted surfaces. It is easy and safe way to permanently mount most types of mirrors.

Packaging: 400 g cartridges


Store in a cool, dry place at room temperature 21°C (+/- 3°C) for best results. Shelf life is 18 months in unopened package.

How to use


Substrate preparation

All surfaces must be clean, dry and free from dust and dirt, which would adversely affect adhesion. If applying to old paint, check adhesion and soundness.  Any unpainted porous surfaces must be sealed with a good quality acrylic substrate sealer.  For best results, wall and mirror surface temperature must be 40° F (4° C) or above. Cut spout to desired bead size (1/4” recommended) and puncture the seal inside the spout.


  • Apply Mirror Mastic in 3-inch diameter spots for every square foot of mirror. Place mirror firmly into position ensuring intimate contact with all surfaces within 10 minutes of application. A base mechanical support system must be used. Heavy mirrors may require additional support. Overhead mirrors require complete mechanical support.
  • Mirror Mastic begins to skin over within 20 seconds and feels dry to the touch. This feature prevents dust and dirt from being attracted to the adhesive surface.  Where mirror is placed on adhesive, the surface skin dissolves to permit maximum contact. Once mirror is set, DO NOT disturb, flashing is not recommended. Maximum strength is obtained when the original bond is preserved.
  • Normally, Mirror Mastic will cure to 60% strength in 48 hours at normal room temperature. The time for curing will depend on temperature and the amount of air circulation.


Clean any tools or excess adhesive with mineral spirits, following the solvent manufacturers’ cautions.


Do not use on Acrylic or other plastic mirrors and wall papered surfaces. May adversely affect old oil-based paints and primers. When used for interior, follow ventilation precautions in “Danger” section.