Materials / Skim coats and compounds

Skim coats and compounds: what to choose, where to use it and what to watch for

Skim coats and compounds is a topic where it is easy to buy by eye and then correct the result on the wall, floor or installation. These cards show uses, common mistakes, differences between solutions and decisions worth checking before purchase.

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Skim coats and compounds w MiWiki

The list below comes from the MiWiki database. Search by topic, use case or problem to narrow it down quickly.

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Bathroom skim coat – uses, selection and application

Bathroom plaster makes sense when used in bathrooms outside the direct splash zone, toilets, laundry rooms and walls under bathroom paint, if the product allows such use. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Cement-based skim coat – uses, selection and application

Cement plaster makes sense when used in rooms with high humidity, cement substrates, technical areas and places where resistance is more important than the easiest grinding. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Deep-repair filler – uses, selection and application

The repair compound for defects makes sense for use in studs, grooves, upholstery, cracked corners, places after disassembly and repairs before applying the plaster. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Finishing compound – uses, selection and application

The finishing mass makes sense when used in the final correction of walls, improving side light, smoothing after repairs and places where the first layer is technically correct but visually too weak. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Flexible crack filler – uses, selection and application

Elastic cracking compound makes sense for use in small cracks, material contact points, repairs after stabilizing the cause of the cracking and where greater tolerance to micro-movements is needed. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

General-purpose filler – uses, selection and application

The putty makes sense when used to repair scratches, small defects, transitions between materials and places where full plastering of the entire wall is not necessary. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Gypsum skim coat – uses, selection and application

Gypsum plaster makes sense when used in living rooms, bedrooms, corridors and rooms where the substrate is mineral, dry, load-bearing and well-primed. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Lime skim coat – uses, selection and application

Limestone plaster makes sense when used in renovations, old mineral plasters, walls that require breathing and interiors where one does not want to close the substrate with a too tight coating. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Low-dust skim coat – uses, selection and application

Dust-free plaster makes sense when used in renovations in an inhabited apartment, spot corrections, work in clean interiors and where dust reduction is more important than the lowest cost. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Plasterboard jointing compound – uses, selection and application

GK board joint compound makes sense when used in GK board joints, corners, board joints, screw places and structures that must work without cracking at the joints. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Polymer skim coat – uses, selection and application

Polymer plaster makes sense when used in residential interiors, walls under strong lighting, corrections after renovation and places where convenient application and a stable, even finish are important. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Powder skim coat – uses, selection and application

Mixable loose plaster makes sense when used in larger renovations, entire apartments, plastered walls and works in which the contractor is able to maintain a repeatable consistency. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Ready-mixed skim coat – uses, selection and application

Painted plaster makes sense when used in repairs, apartments in use, staged works and where cleanliness, repeatability and ease of execution are important. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Sandable skim coat – uses, selection and application

Sanding plaster makes sense when used for standard smoothing of walls and ceilings, when the contractor wants to thoroughly correct the surface for painting after drying. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.

Wet-finish skim coat – uses, selection and application

Wet plaster makes sense when used in apartments where you want to reduce dust, for minor corrections and when the contractor has experience in working with a wet trowel. Don't choose it automatically: check the substrate, layer thickness, drying time, processing method and compatibility with the paint or next layer.