Osmotic two-component type weatherstrip adhesive cement

Code: OSM.0083

Components: 2

Appearance: Powder + Liquid

A two-component, certified cementitious adhesive based on hydraulic binders free from harmful additions, with modifying and flexibilising resins, selected siliceous and calcareous sands, reactive fillers with high pozzolanic activity and cellulosic thickeners, perfect for the preparation of adhesive mixtures that are trowelable with high deformation and impermeability capacity. Ideal for bonding coatings of any kind, even with low absorption, on horizontal and vertical surfaces, both internal or external, including with low porosity (for example, coatings on indoor swimming pools).

Linee di appartenenza

Certification obtained and Standards

Specification for Mortar for Masonry - General purpose rendering/plastering mortar (GP)

EN 998-1

Specification for Mortar for Masonry - General purpose rendering/plastering mortar (GP)

Adhesives for ceramic tiles C2TES1

EN 12004-1:2017

Adhesives for ceramic tiles C2TES1

General characteristics


Max. recommended thickness: 10 mm


Maximum diameter of aggregate: 0.5 mm


Min. recommended thickness: 2 mm




Pot-life: 50 min


Shelf-life: 12 months


Temperature of use: +5 / +35 °C



Technical specifications

> 1 N/mm²

Bonding force

2.8 N/mm²

Capillary absorption

< 0.3 kg•h^0.5/m²

Complete hardening

80 - 90 min

Compressive strength

> 20 N/mm²


1750 g/l

Durability - Tensile adhesion after freeze-thaw cycles

> 1 N/mm²

Durability - Tensile adhesion after immersion in water

> 1 N/mm²

Durability - Tensile adhesion after thermal aging

> 1 N/mm²

Flexural strength

> 6 N/mm²

Mixing ratio of the components

4.1:1 _

Reaction to fire


Available colours

- Gray

Packaging and dimensions

- Bag 25 kg [A]

- Plastic can 6 kg [B]

- Kit: 1 Bag 25 kg [A] + 1 Plastic can 6 kg [B]


Use from 5 to 6 kg/m² of OSMOKOLL depending on the type of support and the type of material to be bonded.

Use fields

Bonding tiles, waterproofing and anti-humidity coatings, structures and masonry exposed or underground provided they are sufficiently porous and absorbent and free from any waterproofing and / or water-repellent surface treatment, whether chemical (siloxanes, epoxies, polyurethanes, etc.) or natural (wax-up). Bonding small vitreous tiles for swimming pools. Bonding tiles on OSMOCEM FLEX or OSMOCEM D type osmotic coatings on terraces and balconies.

Preparation of supports

Application surfaces should be clean, free of soiling, crumbling and non-adhering parts, dust, etc., water repellent treatments in general, etc. conveniently saturated with water until they reach the condition "saturated with dry surface".

Use method

Mix the powder component (component A) with the hydrating solution (component B) with a drill at a low number of revolutions, pouring the powder progressively in the liquid, continue mixing until a homogeneous lump-free mixture is obtained. After mixing is completed wait a few minutes and stir again before proceeding with the application.

Application methods

- Notched finishing trowel

Tool cleaning

- Water

Permitted supports

- Concrete

- Tiles

- Floor screed

Warnings, precautions and Ecology

It is always essential to carry out preliminary tests to verify the appropriateness of the product, depending on specific requirements.

Do not apply in case of direct exposure to sunlight and cure the protection and moist hardening.
Do not apply on little or non-porous substrates or previously coated with water-repellent treatments in general, if not after appropriate roughening by bush hammers, sanders and equipment suitable for preparatory treatments of substrates, or after appropriate treatment with suitable polymeric primers.

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Products on display

  • Osmocem
  • Concrete Repar
  • Opus Dry