NORPHEN FONDO FIL

Solvent Free Multi-Purpose Epoxy Base Coat

Description

NORPHEN FONDO FIL is a solvent-free two component epoxy resin with fillers characterized by high fluidity. Once mixed and ready to use the product is very fluid, self-leveling and can be used as a bonding primer between substrate and subsequent finishing coats or as a binder for resin and quartz based mortars or screeds.

NORPHEN FONDO FIL is suited for the preparation of both concrete and cementitious screeds and epoxy mortars.

Usage field

NORPHEN FONDO FIL can be used as:

  • skim coating base coat primer (with the addition of quartz sand) with or without sand quartz broadcasting, for the preparation of the surface before laying resin coatings;
  • base coat on either concrete or wood dry surfaces;
  • binder for either epoxy mortars or epoxy screeds;
  • binder for castable mixtures with quartz sand.
Packaging

5 kg in kits (A + B)

25 kg (A + B)

NORPHEN FONDO FIL

Solvent Free Multi-Purpose Epoxy Base Coat

Substrates preparation
  • The surface must be dry, solid, free of loose particles (e.g.: film-forming curing agents or lacquer) and traces of oils or grease;
  • based on the state of the surface, to make it clean and rough choose the type of treatment to be carried out;

- washing by means of acids;
- sanding;
- diamond grinding;
- scarifying;
- peening.

  • Concrete or cement mortars must have at least 28 days of curing, cohesion of at least 1.5 MPa (direct drive) and 25 MPa compressive strength.
  • The supports in epoxy resin must be roughened in order to ensure proper wetting and adhesion of NORPHEN FUND FIL.

   The maximum moisture content of the media should be 4% (carbide method according to UNI 10329).

Product preparation
  • Homogenize component A in its container prior to sampling.
  • Shake component B in its packaging prior to sampling.
  • Pour the content of NORPHEN FONDO SL component B into NORPHEN FONDO FIL component A and mix thoroughly with a professional mixer until obtaining a homogeneous mixture.
  • In case of partial use of the pack, respect the mixing ratios by weight.
Product application

Used as a skimming base coat primer:

  • on deeply dry substrates apply NORPHEN FONDO FIL loaded with 30% by weight (on A + B) quartz sand 0.1-0.3 mm using a smooth steel trowel and broadcast (if scheduled) with quartz sand 0.1 - 0.6 or 0.3 - 0.9 mm.
  • Used as a primer:
  • apply NORPHEN FONDO FIL undiluted using a short haired roller;
  • broadcast (if scheduled) with quartz sand 0.1 - 0.6 or 0.3 -0.9 mm with a consumption of approx.0.8 kg/m2 ;
  • remove excess sand by sanding and vacuuming.
  • if a thixotropic slurry is to be obtained to either grout or seal the porosity of the substrate, add 4-5% by weight (on A + B) of EPOXY SILICA. In this case the so obtained mixture should be applied with a smooth steel trowel.

Used as a castable mass:

  • add quartz sand of selected granulometry in the desired proportions (for instance, from 0.3 to 2 parts by weight on A + B of NATURAL QUARTZ 0.1-0.3 mm) and slowly mix with the impeller well immersed in the product trying to minimize air bubbles formation in the product;
  • pour it onto the ground and adjust the thickness with a notched steel trowel.

Used as a binder for epoxy mortars:

  • add 8-10 parts by weight of QUARTZ MIX 0.2 -1.5 mm to 1 part by weight of mixture A + B. The amount of sand should be adjusted depending on the desired consistency.

Spread the mortar with a smooth steel trowel, strike off and smooth it.


Application Conditions and Cure

Application Conditions and Pot-Life

NORPHEN FONDO FIL is characterized by considerable reactivity even when cross-linking at low temperatures.

The dough pot-life depends on the room temperature at which works are executed and on the amount of the dough. In Table 1 are shown pot-life data for 5 kg of product (A + B), with or without quartz sand:

Table 1:

Temperature (°C)

pot-life [minutes]

5 kg of (A + B)

pot-life [minutes]

(A + B +30% NATURAL QUARTZ 0.1 -0.3)

+8

60

72

+12

45

60

+20

30

45

+30

15

22

 

Recoating Time

To use NORPHEN FONDO FIL as a primer and without broadcasting, the ideal time intervals before laying down subsequent finishing coats is shown in Table 2:

Table 2:

temperature (°C)

minimum time [hours]

maximum time [hours]

+8

24

48

+12

16

48

+20

6

36

+30

5

36

 

If over-application is to be carried out after the time limit, it is necessary to proceed with the broadcast of quartz sand over NORPHEN FONDO FIL, fresh on fresh.

 

Tool cleaning
  • with acetone, epoxy thinner or nitro diluent, if the product is still fresh;
  • by mechanical means, once the product has cross linked.

NORPHEN FONDO FIL

Solvent Free Multi-Purpose Epoxy Base Coat

Average Consumption

Table 3 shows the consumption rate of NORPHEN FONDO FIL for the intended use:

Table 3:

Use

Mixture

Coverage

primer

NORPHEN FIL FONDO (A + B)

0.4 - 0.7 kg / m 2

depending on the porosity of the substrate

pourable mass

1 part by weight of NORPHEN FONDO FIL (A + B) +

0.3 - 2 part by weight of NATURAL QUARTZ 0.1 to 0.3

approx. 1.7 kg / m 2 each 1 mm of thickness

Epoxy mortar

1 part by weight of NORPHEN FONDO FIL (A + B) +

8 - 10 part by weight of QUARTZ MIX 0.2 to 1.5

approx. 2.2 kg / m 2 each 1 mm of thickness

NORPHEN FONDO FIL

Solvent Free Multi-Purpose Epoxy Base Coat

Features

PRODUCT APPLICATION DATA

bulk mass, UNI EN ISO 1675

A

B

A + B

kg / l

1.60 ± 0.05

1.02 ± 0.03

1.40 ± 0.05

Brookfield viscosity A + B (6 RV spindle, 10 rpm), ASTM D 2196

+12 ° C

+20 ° C

+30 ° C

mPa.s

2000 ± 100

750 ± 80

550 ± 50

pot-life 350 ml A + B, UNI EN ISO 9514

+12 ° C

+20 ° C

+30 ° C

min

60 ± 2

30 ± 1

15 ± 1

Operating Temperature

 

°C

from -20 to +70

Application Temperature

 

°C

from +8 to +35

Cross-linking ratio by weight A: B

 

-

4:1

FINAL PERFORMANCE

compressive strength, UNI EN 12190, on A + B

 

MPa

70 ± 2

flexural strength, UNI EN 1015-11, on A + B

 

MPa

68 ± 2

adhesion to concrete, UNI EN 1542, on A + B (cohesive failure concrete)

 

MPa

> 3,0

compressive strength, UNI EN 12190

1 p / p A + B + 8 w / w QUARTZ MIX 0.2 to 1.5

 

MPa

80 ± 5

flexural strength, UNI EN 1015-11

1 p / p A + B + 8 w / w QUARTZ MIX 0.2 to 1.5

 

MPa

27 ± 1

adhesion to concrete, UNI EN 1542 (cohesive failure concrete)

1 p / p A + B + 8 w / w QUARTZ MIX 0.2 to 1.5

 

MPa

> 3.0

Shore D hardness (A + B), cure +13 ° C, 70% RH, DIN 53505

24 h

48 h

7 g

°

46 ± 1

62 ± 2

70 ± 2

Shore D hardness (A + B), maturation +25 ° C, 70% RH, DIN 53505

24 h

48 h

7 g

°

60 ± 2

66 ± 2

75 ± 2

Note: testing methods are in accordance with the standards referred to on the table. 

NORPHEN FONDO FIL

Solvent Free Multi-Purpose Epoxy Base Coat

Warning and informations
  • Mix components A and B in the precise ratio given below; in case of use of part of the package weigh the two components according to the ratio referred to on the label.
  • Keep cool in the summer, to avoid an excessive increase in the reaction rate of the system.
  • Keep warm in winter to prevent the occurrence of condensation and crystallization.
  • Read the Material Safety Data Sheet (MSDS) before use.
Preservation

24 months in its closed original container, in a dry place at temperatures between +5°C and +35 ° C. The product is sensitive to frost.