Polyurethane sealant in a cartridge with a high modulus of elasticity

Code: PRS.0101

Components: 1

Appearance: Paste

A single-component, moisture-curing and fast-hardening polyurethane sealant with a medium-to-high modulus of elasticity, remaining permanently elastic yet with high surface hardness and being tear- and weather-resistance and paintable. Ideal for the deformable sealing of expansion joints on terraces and balconies, for filling joints on prefabricated walls and on wooden, steel, aluminium, copper and plastic materials along with plasters and so on.

Linee di appartenenza

Certification obtained and Standards

EN 15651-1:2012

A + (very low emissions)


A + (very low emissions)

General characteristics


Use wearing protective gloves






Density: 1.30 (± 0.05) g/cm³


Temperature of use: +5 / +35 °C


Shelf-life: 12 months

Technical specifications

Complete hardening

24 h

Static elastic modulus

0.6 N/mm²

Hard to touch

60 min


40 _

Dry residue

≥95 %

Working temperature

+80 °C

Breaking load longitudinal

1.5 N/mm²

Longitudinal elongation at break

≥300 %

Available colours

- Black

- Gray

- White

Packaging and dimensions

- Box: 12 x (Cartridge 300 cc)

- Box: 20 x (Cartridge 600 cc)

- Cartridge 300 cc

- Cartridge 600 cc


- Free from solvents, PVC, halogenated compounds, odourless.
- Permanently elastic, high resistance to raging and to the atmosphere.
- Free of shrinkage and dimensionally stable.
- High thixotropy: it does not drip and does not create burrs. Easy workability.
- It is not sticky and does not accumulate dust and dirt.
- Over-paintable after polymerisation has been completed.


Indicative consumption with a 300 cc PROTECH FLEX cartridge: 5x2,5 mm joint = 20 linear metres; 10x5 mm joint = 6 linear metres; 15x7,5 mm joint = 2,5 linear metres; 20x10 mm joint = 1.5 linear metres

Use fields

The high versatility and excellent adhesion to different media make PROTECH FLEX the most suitable adhesive sealant for flooring and roofing joints made of concrete, wood products, steel, stainless steel, aluminium, anodised aluminium, galvanized steel sheets, copper, plastics, etc.

Preparation of supports

The application supports must be perfectly clean and dry, free from dust and soiling. Preliminarily treating the side walls of the joint with the appropriate primer single-component polyurethane PROTECH FLEX PRIMER.

It is appropriate to provide for inserting into the joint, whatever its nature, the specific foamed polyethylene kerb FILTENE FONDOGIUNTO, of the appropriate size to the joint to be sealed.

Prepare an easily removable paper ribbon (coachbuilder ribbon type) on both sides of the joint, in order to prevent the sealant overflowing outside of the natural seating of the joint.

Use method

Slowly and carefully extrude the sealant from the cartridge in the specially prepared seat of the joint, with the appropriate gun (of the type for silicone). Before the total hardening of the sealant, spread it to the brim with spatula on the surface of the joint. After hardening, remove the adhesive tape.

Clean any product overflows from the seat of the joint with suitable solvents (like acetone or Nitro thinner).

Application methods

- Apply by hand

- Dispensing gun

Tool cleaning

- Nitro thinner

Permitted supports

- Cement-based or lime-based mortars

- Concrete

- Drywall

- Fiber-cement

- Floor screed

- Metal surfaces

- Plasters

- Plastic

- Prefabricated concrete

- Tiles

- Wood

Warnings, precautions and Ecology

Carry out preliminary adhesion and compatibility tests of paints in case of subsequently painting the sealant.

It is good practice for the depth of the sealing section not to exceed half the width of the joint. To this end, the depth will be determined by the placement of FILTENE FONDOGIUNTO.

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