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Applications: Home decoration (1); Parquet (1); Wood working
Brands: ~~Bostik~~ (15)
Destinations: Floors (1)
Specific characteristics: Environmentally friendly (2); Heat resistant (4); Ready-to-use (2)
Substrates: Paper/cardboard (12)
Segments: Construction (4); Consumer (1); Industry (13)

NOVAFLEX 347

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

NOVAFLEX 347 is a two-component solvent-based aliphatic polyurethane resin used as a thin lining for tanks, fountains and swimming pools.

Benefits

EC marking according to NF EN 1504-2 European standard
Good resistance to UV rays
Easy to use
Excellent chlorine resistance
Several colours available (e.g. RAL 1014, 1015, 5012, 5017, 5024, 6019, 6021, 7030, 9002, 9011)
European fire classiciation: Bfl-s1

Properties

Physical:

Bostik method N°	Characteristics	Resin (Part A)	Hardener (Part B)	Blended
00.010	Consistency	Liquid	Liquid	Liquid
00.020	Colour	(*) Coloured	Pale yellow	(*) Coloured
01.052	Specific gravity at 23°C	1.23 - 1.29	1.05 – 1.20	1.22
01.060	Brookfield viscosity, spindle 2, 12 rpm	700-1 300 mPa.s	175 - 325 mPa.s	200 - 500 mPa.s
	Mixing ratio: by weight	100	18
	Drying time at 20°C (300µ film)			1-2 hrs
	Dry solids content			approx. 66%

(*) Colours according to BOSTIK standard colour chart

Consumption:

see § Application.

Shelf life:

Up to 6 months in the original unopened containers stored in a dry place between +10°C and +25°C.

Application

Application conditions

Working temperature: +10°C to +25°C

Maximum relative humidity: 70%

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

Surface 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.

Primer EPONAL 382

Slowly add the hardener into resin (components A + B) while mixing, mix thoroughly for 3 to 5 minutes with an electric drill and mixing paddle (speed: not more than 300 rpm in order to avoid air bubbles inclusion). Apply immediately the mixture with a roller onto the substrate at a rate of 250-300gr/m².
For wet substrates without water seepage and hydrostatic pressure or if there is a risk of rising damp, apply EPONAL 376 (300-400gr/m²) instead of EPONAL 382.

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, after curing sand and degrease it with MEK just before over-coating.

NOVAFLEX 347 blend preparation
Slowly add the hardener into resin (components A + B) while mixing, mix thoroughly for 3 to 5 minutes with an electric drill and mixing paddle (speed: not more than 300 rpm in order to avoid air bubbles inclusion). Apply immediately the mixture with a roller onto the substrate at a rate of 200-250gr/m².
Two coats of NOVAFLEX 347 (250gr/m²/coat) are applied onto the dry coat of primer (EPONAL 382 or EPONAL 376 or EPONAL 990) .
NOVAFLEX 347 can also be applied onto a reinforced lining system consisting of 1 coat of EPONAL 382 primer, 1 coat of EPONAL 384 binder (1.4kg for 2 coats), reinforced with fibreglass of 450 gr/m².
Drying time at +20°C for a 300µ film: 1-2 hours.

Consumption
EPONAL 990: 80-100gr/m².
EPONAL 382: 250-300gr/m².
EPONAL 376: 200-400gr/m².
NOVAFLEX 347: 200-250gr/m².

Packaging

Presentation	Bar code	Bostik code
metal kit - clear - 22.9 kg		176942
metal kit - beige colour 1014 - 25 kg		170083
metal kit - beige colour 1015 - 25 kg		178312
metal kit - blue colour 5012 - 25 kg		178314
metal kit - black colour 9011 - 25 kg		178316
metal kit - green colour 6019 - 25 kg		178320
metal kit - green colour 6021 - 25 kg		178322
metal kit - blue colour 5017 - 25 kg		178323
metal kit - grey colour 7030 - 25 kg		178327
metal kit - white colour 9002 - 25 kg		178310
metal kit - blue colour 5024 - 25 kg		170081
metal kit - clear - 4.6 kg		176943
metal kit - beige colour 1014 - 5 kg		170082
metal kit - blue colour 5024 - 5 kg		170080
metal kit - grey colour 7030 - 5 kg		178328
metal kit - white colour 9002 - 5 kg		178311
metal kit - blue colour 5017 - 5 kg		178324
metal kit - green colour 6021 - 5 kg		178321
metal kit - black colour 9011 - 5 kg		178317
metal kit - green colour 6019 - 5 kg		178318
metal kit - blue colour 5012 - 5 kg		178315
metal kit - beige colour 1015 - 5 kg		178313