Manual - Formech 450DT V1.0 - 0317
28
Service / Repair
Replacing Seals
Clean up completely,
mask the area and ‘key’
the surface.
Apply the sealant
evenly.
Fit overlapping silicone
strips and ‘bed’ into
sealant.
Apply a 45 degree mitre
at the corners. Ensure
the joint is sealed.
1
2
3
4
1
. Remove all the existing seal and adhesive with a sharp blade. Mask off the sealing area with masking tape
or similar (Mask the outside for top frames or reducing windows & the inside for table seals). Prepare the
sealing area with emery cloth or similar to achieve a good surface for the new adhesive to key with. Ensure
that the surface is clean from dust, dirt and grease.
2
. Apply a generous bead of high modulus silicone sealant to the masked area and smooth down to give a
consistent layer.
3
. Cut the silicone strip in lengths long enough to overlap the corners. Do not stretch the seal strip when
measuring or applying. Lay each strip on to the seal area overlapping at the corners. Ensure the seal strip is
bedded down well by pressing fi rmly along the full length.
4
. With a sharp blade cut a 45° mitre joint at all corners. Fill gaps in the joints with sealant. Remove the
masking tape before the sealant has set. For best performance leave seal to set overnight.
