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Applications: Assembly and repair (5); Grab adhesives (5); Heating, Ventilation & Air Conditioning (13); Home decoration (35); Industrial Assembly (5); Industrial seamless floors (10); Insulating Glass (4); Labelling (15); Parquet (12); PVC welding (4); Rigid packaging (30); Sealants (7); Self-levelling compounds (14); Soft floor (carpet /PVC) (20); Substrate preparation/Primers (13); Tapes and Labels (12); Tiling (10); Wall adhesives (9); Waterproofing coatings (9); Wood working (15)
Brands: Ardal (14); Bostik (137); Eponal (14); Laybond (2); Novaflex (4); Quelyd (17); Roxol (10); Sader (13); Tarbicol (4)
Destinations: Floors (72); Walls (21)
Specific characteristics: Environmentally friendly (47); Exterior (21); Heat resistant (7); Ready-to-use (91); Suitable on wet substrate (7); Water resistant (18)
Substrates: Ceramic tiles (31); Paper/cardboard (66); PVC (25)
Segments: Construction (105); Consumer (17); Industry (95)

EPONAL 342

Additional Downloads
MSDS

Uses

EPONAL 342 is a two-component solvent-free epoxy resin especially designed for crack bridging of reinforced concrete (from 0.2 to 0.6mm width) in industrial flooring application.

Benefits

Fluid
Sovent-free
Does not shrink
Can be used onto dry or wet substrates not subject to water seepage
Excellent mechanical resistance (monolithically weld the fissured structure)

Properties

Physical:

Bostik Method	Characteristics	Resin (Part A)	Hardener (Part B)	Blended
00.010	Consistency	Liquid	Liquid	Liquid
00.020	Colour	Pale yellow	Clear	Pale yellow
01.052	Specific gravity at 23°C	1,08 - 1,12	0,98 - 1,02	1,04 - 1,08
01.070	Brookfield viscosity at 23°C	600 – 1000 mPa.s	85 – 115 mPa.s	200-400 mPa.s
	Mixing ratio: by weight by volume	100 2	50 1
	Working life at 20°C 1kg 5kg			45 min 30 min
06.050	Hardness, Shore D			81/84

Mechanical properties after 7 days cure at 20°C

Compressive strength	Compressive strength	82 MPa
Tensile strength	Tensile strength Elongation @ break	35 MPa 1.35%

Consumption:

1 kg of EPONAL 342 per 5 to 7 linear metres (depends on the opening and depth of the crack)

Safety:

IMPORTANT: before embarking on any work involving EPONAL 342 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.

Application

Application conditions

Working temperature: from +10°C to +30°C

Relative humidity: 80%

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

CRACK BRIDGING

Slowly add the hardener into resin (part A + B) while mixing, mix thoroughly for 3 minutes with an electric drill and mixing paddle (speed: not more than 300 rpm in order to avoid air bubbles formation).

Apply the mixture immediately.

CAULKING

Cracks should be cut out in a V-shape using a triangular scraper. Fill them with a pure blend of EPONAL 342 or with a fluid mortar of EPONAL 342 depending on the opening of the crack. For wider cracks, sink a strip of glass fibre cloth in the surface epoxy resin, and integrate it in the priming coat.

INJECTION

Clean the crack, glue transparent injection ports on face of cracks every 30 to 50cm.

Inject EPONAL 342 (A+B) using a pressure pot or caulking gun. Start injecting from the bottom port at a low pressure; gradually bring the pressure up (from 200g to 5kg/cm² depending on the type of crack).

When the resin starts coming out of the higher port which serves as an air hole; cap the lower port and move on to next, the higher port, until the whole crack is filled.

Cleaning

Fresh resin can be cleaned with a solvent. Dry resin can only be removed mechanically.

Packaging

Presentation	Bar code	Bostik code
metal kit - 1 kg	3549211666218	166621
cartridge - 400 ml	3549210017318	166620
metal kit - 5 kg	3549211666225	166622