5.2 Surface Preparation
Plaster Board and Cement Sheet
The wall area must be a dry and clean surface, free from any crumbling plasterwork,
grease or major surface damage. Crumbling plasterwork should be removed with
a scraper blade or sanded off, or if severe, it must be repaired with plaster filler
or patched with a suitable piece of plasterboard. Grease should be removed with
isopropanol (IPO) or thinners and wiped dry. All nail heads must be punched in.
Residual glue or plaster filler should be sanded or scraped off.
Bricks or Cement Blocks, Grey Coat Render or White Coat Plaster
The wall area must be a dry and clean surface, free from any crumbling plaster,
mortar, sand, grease or major surface damage. Crumbling plaster should be
removed with a scraper blade or sanded off, or if severe, it must be repaired with
plaster filler. Grease should be removed with isopropanol (IPO) or thinners and
wiped dry. Residual mortar or plaster filler should be sanded or scraped off. Sandy
or loose render on brickwork or cement blockwork must be sealed with appropriate
sealer/primer. (Laminex recommends ArdexP51 Porous Substrate Primer. Follow
manufacturer’s application instructions.)
Installation over ceramic tiles is not recommended. The flatness of the wall and
condition of the tile adhesive cannot be controlled. It is recommended that the tiles
are removed and the wall is relined for flatness.
Any holes larger than 100mm across must patched or filled. Electrical or plumbing
penetrations should be cut to
slightly oversized for ease of
installation, however they should
not be excessively oversized to
ensure wall integrity.
Figure 8 should be used as a
reference for the recommended
repair method for any damage
to the wall.
Installations where these minimum distances are not observed creates a risk of
impact damage and blistering of the panel and surface from the use of oversized
cooking pots and will void the Laminex Metaline splashbacks limited warranty.
Figure 6:
Larger Gas Hotplate clearances
Figure 7:
Larger Electric Hotplate clearances
30mm
30mm
30mm
30mm
85-
105mm
30mm
30mm
30mm
30mm
85-
105mm
>100mm
Needs patching
Large hole
75-100mm
✓
Hole
✓
Cracked
plaster
✓
Paper
tear
✓
Power
point
Figure 8:
Wall damage and recommended repair
requirements
