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Applications: Industrial seamless floors (6); Soft floor (carpet /PVC) (1); Substrate preparation/Primers (4); Waterproofing coatings (5)
Brands: Eponal
Destinations: Floors (9)
Specific characteristics: Exterior (2); Suitable on wet substrate (2); Water resistant (5)
Substrates: Ceramic tiles (4); PVC (1)
Segments: ~~Construction~~ (14)

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EPONAL 990

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MSDS Resin Part
MSDS Hardener Part
Definition
PrimerLiquid or paste applied onto a substrate to obtain optimum bonding. It helps regulate the porosity of the substrate (reduce absorption, therefore adhesive usage), increase adhesion to non porous surfaces, improves application properties of later on applied adhesive

Uses

EPONAL 990 is a two-component water-based epoxy resin that can be used as :

- a protective primer for concrete structures in industrial and pedestrian epoxy systems

- a primer for steel and metal structures
- a binder for repair mortars and industrial tile grouting

Benefits

- "Waiting" primer

- Has excellent adhesion to dry or damp concrete, metal decking

- Can be diluted with water

- Economic coverage (100 to 200 g/m² depending on substrate).

Properties

Physical:

Physico-physical properties:

Bostik Method	Characteristics	Resin (Part A)	Hardener (Part B)	MIX
00.010	Consistency	Liquid	Liquid	Liquid
00.020	Colour	Pale yellow	Light amber	Milky white
01.052	Specific gravity at 23°C	1,14	1.06	1.10
01.344	Brookfield viscosity at 23°C	900 – 1,000 mPa.s	500 – 600 mPa.s	500– 900 mPa.s (*)
	Mixing ratio by Weight Volume	100 1	93 1
06.060	Pot life - DVP at 23°C on (100cc)			2h (gel formation)

(*) After thinning

Mechanical characteristics after 7 days cure at 20°C

Bond strength to concrete (SATTEC): to dry sanded concrete
to damp sanded concrete

9,1 ± 0,2 MPa (concrete fails)
3,1 ± 0,2 MPa (concrete fails)

Chemical resistance : EPONAL 990 / Sand (1/7)

Ethyl Acetate	R
Acetone	R
Acetic acid 10%	RI
Bleach 48°	R
Distilled water	R
Domestic fuel	R
Sulphuric acid 10%	R
Sulphuric acid 30%	R
Hydrochloric acid 10%	R
Hydrochloric acid 30%	R
Nitric acid 10%	R
Nitric acid 30%	NR
Potash 50%	R
Brake liquid	R
Methanol	R
Soda 50%	R
Petrol (unleaded)	R
Toluene	R

R: Resistant
RI: Resistant to intermittent exposure/occasional spills when immediately cleaned
NR : Non resistant

Consumption:

Refer to application instructions

Safety:

IMPORTANT: before embarking on any work involving EPONAL 990 the separate Product Safety Data Sheet must be studied carefully by those carrying out the work.

PREVENT skin and eye contact. Do not breathe vapours. Use protective gloves when mixing or using. Wear protective clothes and safety glasses.

Shelf life:

Up to 12 months in the original, unopened containers, stored in a dry place at +10°C and +25°C. Frost-sensitive.

Application

Application conditions

Working temperature: + 10° to + 25°C

Relative humidity: 80%

During application and cure, substrate temperature must always be at least 3°C above the dew point temperature.

PREPARATION

Preparation should be in accordance with building standards. Subfloors must be clean, sound, dry (relative humidity <4%), of adequate compressive and tensile strength (at least 25 MPa and 1,5 MPa respectively after 28 days cure for new concrete) and not subject to hydrostatic pressure. They must be free from laitance, cracks and structural defects; clean and free from dust, grease, curing compounds, sealers or any other contaminants that would inhibit proper bond. Depending on subfloor condition and type, subfloors are treated by grit blasting, mechanical planing, scabbing, sandblasting, high pressure water washing or chemical stripping. After mechanical treatment of a subfloor, thoroughly vacuum all dust.

Steel and metal decking should be grit blasted, grinded or sand blasted, then degreased with MEK (Methyl Ethyl Ketone).

APPLICATION OF EPONAL 990 AS A PRIMER

Slowly add the hardener into resin (part A + B) while mixing, mix thoroughly for 2 to 3 minutes with an electric drill and mixing paddle (speed: not more than 300 rpm). Then add water to the blend observing the following mixing ratio 100:93:60 (Resin : Hardener : Water) by weight or 1.5 litre of water for a 5kg kit of EPONAL 990 (Part A+B).

The obtained milky mixture is applied with a roller at a rate of 150 g/m².

Overcoating time: EPONAL 990 is a "waiting" primer, it means that even after a period of 48 hours it can still be over-coated with a solvent-free or water-based epoxy resin flooring with no particular treatment or sand spreading needed.

Example:

Over-coating of EPONAL 990 primer coat with EPONAL 328 after 7 days cure at 23°C : bond strength SATTEC is of 3.5 ± 0.1 MPa (concrete fails).

APPLICATION OF EPONAL 990 AS A BINDER FOR REPAIR MORTARS AND GROUTS

Slowly add the hardener into resin (part A + B) while mixing, mix thoroughly for 2 to 3 minutes with an electric drill and mixing paddle (speed: not more than 300 rpm); add the required quantity of sand to obtain trowel-applied mortar or grout.

Trowel-applied repair mortars: mix by weight 1 part of EPONAL 990 (blended) with 7 parts of 0.2-0.5mm sand.

Grouts: mix by weight 1 part of EPONAL 990 (blended) with 7 parts of mixed sand (3 part of 0.2 to 0.5mm sand with 1 part of 0.01-0.2mm sand).

Packaging

Presentation	Bar code	Bostik code
metal kit - 10 kg		170312