BRAND & PRODUCT

         ROOFCOAT

DESCRIPTION             

Water based flexible liquid membrane

PRECAUTIONS

Protect  the cans against frost

Apply ROOFCOAT at temperature above 10°C  ( = surface temperatures: 7°C) in dry weather, without risk from rain or frost in the next 24 hours.

TECHNICAL SPECIFICATIONS

Composition

Binder:      synthetic copolymers with elastomeric characteristics

Pigment:   with: rutile titanium oxide

Solvents:  water

System Composition

Well-cured and prepared substrates will be treated with a well-chosen priming coat adapted to the support:

-          bituminous: 1 coat with ACROMUR

-          asbestos-cement, porous concrete: 1 coat with FIXOL

-          rusted galvanized sheet: please refer to FIXOL

Viscosity

Epprecht STV Mod.3 – 200 t/min. at 20°C 100 -/+ 20 d Pa.s.

Elasticity

On test-strips N.B.N.B. 46-203. 15 mm:

-          after 21 days 20°C and 60% of R.H.: elongation of more than 800%

-          after 100 hours at 70°C: elongation of more than 800%

Density

1.50 +/- 0.05 at 20°C

Impermeability

Under water column of 25 mm: full

Bending

According to standard N.B.N.  46-203 diameter 15 mm at 20°C, 0°C and –10°C: no deterioration.

Chemical Resistance

Diluted acids (25% in water): Hydrochloric acid / nitric acid / sulphuric acid/ acetic acid: very good

Diluted alkalis (25% in water): caustic potash / caustic soda: very good

Solvents: methyl – ethyl – isopropylic alcohols : good

Gasoline: aliphatic and aromatic hydrocarbons / ketones / esters: bad

Mineral and vegetal oils: very good

INSTRUCTIONS FOR USE

Application & Dilution

Ready for use

Rectangular brush and wool roller 10 mm

Airless spray gun with 2 to 3% water, if necessary, pressure: 250 bars

(the use of devices with sucker pump is to be avoided)

Preparation of Support

Minimal slope of the roof partsµ

Replace damage roof parts

The support must be dry, sound and free from moss, leafs, mud, … Remove with a brush then treat the support with ANTIMOUSSE

Get rid of blisters and bubbles from bituminous materials

Treat joints and cracks:

-          Joints: open and wash. Fill in with a permanty souple filling compound.

-          Cracks: reinforce them with Synthetic Fabric (20 cm wide) as follows

1.       Apply ROOFCOAT on each edge; spreading rate: min. 1 kg/m²

2.       Set the reinforcing cloth in the wet ROOFCOAT

3.       Fix with a spatula or a dry roller

4.       Let to dry

5.       Apply supplementary coat of ROOFCOAT ; spreading rate: min. 1,5 kg/m²

(Badly cracked roofs are treated with a full Sythetic Fabric of  115 cm wide)

Cleaning of Material

In case of prolonged interruption, wash as follow:

-          wet product: soapy hot water

-          dry product:   acetone,  xylene.

Coverage

Apply ROOFCOAT  according to the following minimum spreading rate:

-          repairing (maintenance): 2 Kg/m² or 1.5 L/m² (min. 2 coats with 0.750 L/m²)

-          New works: 3 Kg/m² or 2.2 L/m² (min. 3 coats with 0.750 L/m²)

Drying

At 20°C and 60% OF R.H. for  a 1 Kg/m² rate:

-          rainfree: 4 hours

-          dry:         24 hours min.

Recoatable

Apply a second coat ROOFCOAT only after drying of the previous coat.

Shades

Light-stable pigments

REMARKS

Take into account the roughness of the support when determine consumption rate, carefully respect minimum spreading rate. For this purpose, delimit  the surface on which a complete package must absolutely be applied

Temperature and atmospheric humidity can be strong influence on the drying time.