Search filter

Applications: Home decoration (13); Soft floor (carpet /PVC)
Brands: Bostik (7); Eponal (1); Laybond (2); Quelyd (1); Sader (9)
Destinations: Floors (18)
Specific characteristics: Exterior (1); Heat resistant (1); Ready-to-use (17); Water resistant (1)
Substrates: PVC (13)
Segments: Construction (17); Consumer (1)

EPONAL 328

Two-component solvent-free epoxy resin - Protective thin industrial flooring for conctete subfloors (0.8mm)

Additional Downloads
MSDS Hardener
MSDS Resin
4. Industrial Floorings and Playgrounds (1187 Kb)
Definitions
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
Waiting timeTime between adhesive application and material bonding. It is required to wait to allow the adhesive to have enough adhesion power (tack) to receive the floor covering.
Working timeTime between end of waiting time and moment when the application is no longer possible

Uses

EPONAL 328 is a two-component solvent-free epoxy resin that can be used as a protective coating in thin-bed flooring system (0.8 mm) in closed areas: corridors, pedestrian areas, stairs, car parks, technical premises, warehousing areas ...)

Benefits

Product being a part of the system under NF EN 13813 standard
Solvent-free
Excellent adhesion to concrete and metal
Excellent mechanical characteristics
Easy to apply
Good resistance to most commonly used chemicals
Available in a range of colours
European fire classification : Bfl - S1

Properties

Physical:

Physico-physical properties

Bostik Method	Characteristics	Resin (Part A)	Hardener (Part B)	Blended
00.010	Aspect	Thick liquid	Liquid	Liquid
00.020	Colour (1)	Coloured	Pale yellow	Coloured
01.052	(*) Specific gravity at 23°C	1,56 - 1,60	0,96 - 1,00	1,43 - 1,47
01.060	(*) Brookfield viscosity at 23°C	3 300 - 4 500 mPa.s	200 - 400 mPa.s	800- 2 200 mPas
	Mixing ratio: by weight by volume	100 3.5	20 1
06.060 01.496	Working time at 23°C / 100 cc Pot life at 23°C / 100 cc			2 - 2hrs 30 mins 5-7 hours

(1) Considering the nature of the product we cannot guarantee the exact colour corresondence to RAL coulour chart nor shade reproducibility.
Pot life is the cure time of the blend (Resin + Hardener)
(*) Above-mentioned specific gravity and viscosity are given for clear epoxy coating. Specific gravity and viscosity of blended products can vary depending upon colour.

Mechanical properties after 7 day cure at 20°C

Hardness	Shore D	72
Traction	Tensile strength Elongation @ break E4 Modulus 0.2%	20.9±0.4 MPa 2.7±0.5% 2920 ± 150 MPa
Compression	Compressive strength Compression % E modulus	44.3±0.7 MPa 4.3±0.1% 2160 ± 90 MPa
Flexion	Flexural stress @ break Bending deflection @ break Flexural modulus Eb	30.9±1.7 MPa 15.1±1.6mm 2340 ± 100 MPa

Chemical resistance at 20°C

Ethyl Acetate	RI	Distilled water	R
Acetone	RI	Bleach 48°CHL	R
Acetic acid 10%	NR	Hydrogen Peroxide	R
Hydrochloric acid 10%	R	Ethanol	R
Hydrochloric acid 30%	RI	Domestic fuel	R
Citric acid 10%	R	Brake liquids	RI
Lactic acid 10%	R	Methanol	R
Nitric acid 10%	NR	Potash 50%	R
Nitric acid 30%	NR	Soda 50%	R
Phosphoric acid 10%	NR	Petrol (unleaded), Super 98	RI
Phosphoric acid 30%	NR	Toluene	RI
Sulphuric acid 10%	RI	Beers	R
Sulphuric acid 30%	RI	Fruit juice (orange)	R
Ammonia 20%	RI	Wines 12°	R
Demineralised water	R	Chromic acid 10%	RI

NR: Not resistant

R: Resistant

RI: Resistant to intermittent exposure/occasional spillages if immediately cleaned

NB: Depending on the initial colour and the nature of the chemical agent, a discolouration or change in colour can sometimes be observed, this change does not affect in any way the protection properties of the flooring.

Safety:

IMPORTANT: before embarking on any work involving EPONAL 328 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 24 months in the original, unopened containers, stored in a dry place at +5°C and +25°C

Application

Application conditions

Working temperature: + 10° to + 30°C

Maximum 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. Concrete 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 sanded or abrasive blasted to a white metal finish, then degreased with MEK (Methyl Ethyl Ketone). Prime metal surface with EPONAL 990 at a rate of 80-100gsm, after curing sand and degrease it with MEK just before over-coating.

PRODUCT MIXING

Slowly add the hardener into resin (parts A + B) while mixing, mix thoroughly for 2 to 3 minutes with an electric drill and mixing paddle (speed: not more than 300 rpm in order to avoid air bubbles inclusion) until the colour is homogeneous. Apply the blend immediately.

SYSTEM

Primer: Dry substrate: apply a coat of EPONAL 321 using a roller or or a notched trowel n°3 B2 at a rate of 300-400gsm. Damp substrate (not subject to water seepage or likely to suffer from rising damp): apply one or two coats EPONAL 376 using a roller or or a notched trowel n°3 B2 at a rate of 300-400gsm/coat.

Coating: using a short-pile roller apply one coat of EPONAL 328 at a rate of 250-400 gsm depending on the required use.

Anti-slip finish: broadcast sharp sand (particle size: 0.4-0.9mm) abundantly over the primer coat still wet or over the first coat of EPONAL 328 still wet, apply with a short-pile roller the second coat of EPONAL 328 at a rate of 250gsm.

IMPORTANT: Long exposure to sunlight/UV rays may cause variations in colours. This effect is more or less noticeable depending on initial colour. It does not alter mechanical properties of the flooring.

Between primer application and Eponal 328 application, a minimum drying time should be observed depending on temperature :

TEMPERATURES	+10°C	+20°C	+30°C
Waiting time between application of EPONAL 321 or 376 or 990 and EPONAL 328	48 h	24 h	12 h
Waiting time between application of EPONAL 328 and EPONAL 328	48 h	24 h	12 h
Set to pedestrian traffic	4 days	48 hours	24 hours

Packaging

Presentation	Bar code	Bostik code
metal kit - clear - 23 kg		165172
metal kit - white - 25 kg		164372
metal kit - beige 1014 - 25 kg		164332
metal kit - blue 5012 - 25 kg		164331
metal kit - brown red - 25 kg		164343
metal kit - chamois - 25 kg		164344
metal kit - grey 7037 - 25 kg		164340
metal kit - grey 7040 - 25 kg		164330
metal kit - yellow 1018 - 25 kg		164345
metal kit - green 6002 - 25 kg		164346
matal kit - green 6021 - 25 kg		164347
metal kit - black - 25 kg		164348