Processing and working instructions HPL and HPL elements PR ...

PRODUCT INFORMATION
5. INTErNAL rECESSES AND CUT-OUTS OF DUrOPAL HPL ELEMENTS
5.1 general
The corners of cut-outs should never have sharp angles, since these would quickly
become damaged. Sharp edges can only be achieved by the joining of different cut
pieces.
Internal corners must always be rounded, with a minimum radius of 5 mm. In the case of
internal recesses and cut-outs of over 250 mm side length, the radius must gradually be
increased in accordance with the length of the side.
Rounded internal recesses can be produced directly with a router, although for exact results, the corresponding
radius should be pre-drilled. Ensure that the edges are free of notches. When planning to install
heat sources, e.g. halogen lamps, the cut-out should be designed to include sufficient extra clearance,
or should be insulated.
The DUROPAL HPL surface should not be subjected to prolonged exposure to temperatures in excess
of 70 °C. The different expansion coefficients should also be noted if using a combination of different
materials.
5.2 Processing of Duropal HPL worktops
Due to the high-quality lamination of the top and reverse side, DUROPAL HPL worktops are reliably
protected against the penetration of water and steam. During processing however, unprotected edges
and joints can be created. Such exposed areas should therefore always be sealed during the course
of the final assembly of the DUROPAL HPL elements. Otherwise the general instructions of 5.1 apply.
5.3 Tools
Please see chapters 2, 3 and 4. The tools and usage possibilities described also apply for the production
of internal recesses and cut-outs.
099 PI Processing and working instructions Page 10 of 34