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Technical Bulletins

Here you will find a mix of common and not so common enquiries. Whether it be about a product material, a tool, adhesive or time-saving tip. Scroll through and if what you are looking for is not there make a suggestion.

Solutions techniques

Technical Bulletins - Marmoleum

Dry room Yellowing- Marmoleum

What is “drying room yellowing” (also known as “stove yellowing”) and when will it disappear?

“As all linoleum completes its maturing, a temporary and variable natural phenomenon occurs which may give the product a yellow tint. Expose the product to either natural or artificial light to allow this tint to disappear and the true colour of Marmoleum will develop.” Yellowing is related to the natural linseed oil and usually only occurs on lighter colours in blue, grey and greens.

Marmoleum drying room "yellowing" factsheet

Drying room marmoleum

Bight mark in Marmoleum

3km runs of Marmoleum mature in large drying rooms in continuous rolls up to 16 metres high. At the top, the linoleum passes over a pole, face inwards, and at the bottom forms a loop, or bight, face outwards.
During the 2-3 week curing process the weight of the material causes the linoleum to mould a little to the pole at the top causing a mark across the width which is always cut out at the factory.

The fold or “bight” at the bottom is however more gentle though sometimes detectable as a slight ridge across the middle of a full roll about 15 cm wide. With modern flexible linoleum formulations, this can usually be stuck down in 2.5 mm or 2.0 mm linoleum using normal adhesive spreading techniques provided the bight mark area is well rolled, firstly across the sheet and then along it until the bight has bonded securely. "bight" marks are not manufacturing defects.



How to fix marmoleum bright mark bubbles

bight mark

Other linoleum technical bulletins

  •  Marmoleum Repairs

    Repairing Marmoleum

  • Fitting gatic drains with Marmoleum & Vinyl

    Fitting gatic drains with Marmoleum & Vinyl

  • Installing over existing non asbestos and non porous resilient floors

    Installing over existing non asbestos and non porous resilient floors

Technical Bulletins - FL desktop

Mask scratches from furniture linoelum

Furniture Linoleum may need a refreshment when regular or periodic maintenance is insufficient.

A pure walnut can be used to mask locally light scratches. Use a dry soft microfiber cloth to take off the oil residues off the treated area in circular movements.

Refreshing furniture linoleum with walnut

Forbo_Furniture-Linoleum_539x404_Verarbeitung

Technical bulletins - Vinyl flooring

Rubber staining of PVC Floorcoverings

What is the cause of rubber staining?
Common black, grey or white rubber wheels, rubber sole shoes, rubber backed mats and various other kinds of products that are often made of ”STANDARD RUBBER” which contain carbon black that will permanently stain PVC-floorings. This type of rubber often contains residual oils which will over a short period of time migrate into the floor covering. The migration will be visual as brown-yellow stains which are impossible to remove and will
vary in size dependant on the contaminant source and foot traffic loads.
TB - Rubber staining on PVC floorcoverings

PVC rubber stain