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Chemical resistant two-pack caulking compound, epoxy composition

TS 5772-003-74321702-2007

Original state: Ingredients A – thick thixotropic paste, Ingredients B - low-viscosity clear liquid
Suitable for food processing premises
Water resistance
High mechanical strength
High acid resistance

Technical characteristics

Ingredients A density
1,5 kg/l
Ingredients B density
1,05 kg/l
Mixture viability at 20°С
40 min
Surface is ready to use for pedestrian load at 20°С
in 1 day
Surface is ready to use for full mechanical and chemical load at 20°С
in 7 days
Ultimate compressive strength, not less than
>45 MPa
Ultimate tensile strength, not less than
>30 MPa
Fluidity resistance, not more than
2 mm
Acid resistance (H2SO4 20%)
Alkali resistance (NaOH 20%)
Water absorption 0,3%
0,3 %
Shelf life in fabrically closed packaging
12 months
Application in the food processing premises
Increased strength
Shore hardness D
77 s.u.
Mixing proportions (А : B), parties by weight
11,5 : 1
Application temperature, ºС
from 12° to 30°
Operating temperature, ºС
from -30° to 100°


Caulking compound is designed for fitting the tiles and decorative framing of joints while making anticorrosive protection with single-piece articles (tile, brick, shaped graphite products and etc.) building structures and lining of technological equipment. It can also be used as filler for a wide range of surfaces.

Application in food industry premises is possible (without direct contact with food) and in premises where high demands are placed on hygiene, resistance to mechanical loads, abrasive wear, aggressive agents exposure and humidity.


  • Modified epoxy composition, finely dispersed chemical resistant filler, special additives and hardener;
  • Because of special structure, caulking compound is easily applied and does not leave any water marks and stains on tile and can be applied for decorative framing of joints in acid resistant tiles made from fine-pored ceramics (acid resistant, ceramic and fireclay tile);
  • Composition contains additional functional groups, increasing chemical resistance, water resistance, adhesion and resistance to epoxy thermal oxidation.




Substrate shall be thoroughly cleaned from dust, moving particles, scales, fat and oil stains. It must have mechanical strength and have sufficient bearing capacity. Residual moisture of the substrate to the depth of 20 mm can not exceed 10 %. For binding free water on the surface preliminary priming is required. For these purposes the following our products are suitable: Himflex Primer EP 01 (base – epoxy resin emulsion) that can be applied to wet and dry substrates or bottom Himflex Primer EP 02 (modified epoxy composition), that can be applied to concrete substrates with residual moisture up to 15 %.


Cleaned surface shall be preliminary primed with appropriate bottoms on epoxy base. Welds shall be released from welding slag (flux) and layers of scale. Remove notches, burrs, welding spatters by grinding, round sharp edges, corners, notches, welding seams. Grease, marking paint or other substances shall be removed from the surface. If needed, before performing blasting, to remove organic contaminants a solvent can be used (white spirit in accordance to GOST 3134). Degreasing shall be made to level 1 (GOST 9.402). Metal surface of protected constructions must be cleaned to the degree of purification Sa 2,5 (ISO 8501-1) or to level 2 (GOST 9.402).



Joints shall be dried and cleaned from dust and glue residue before caulking compound application. They must have rectangular cross section, width from 1 up to 10 mm and depth not less than 2/3 of tile thickness.



Caulking compound preparation is done by thoroughly components mixing on the worksite.

For doing this it is essential to open the bucket 0,4 kg with ingredients B (catalyst) and pour it into the bucket 4,6 kg with ingredients A (paste). These ingredients shall be mixed for not less than 3 minutes with a mechanical mixer or low-speed electric drill with a special mixing head to form a homogeneous mixture without stripes and lumps. Special attention shall be paid to mixing the near the walls and bottom of the bucket. Manual mixing of caulking compound is not recommended. The amount of caulking compound is measured and packed by manufacturer in necessary proportions that prevents mistakes while mixing.

While mixing ingredients A and B it is necessary to strictly keep proportions of the components written in product passport and in the manual. Upward and downward variations from stated proportions lead to the loss of hardened composition technical properties!



For tile fitting

Ready to use caulking compound is applied to the laying area (primed if needed) with a serrated spatula. This area shall be faced with tiles for 20-30 minutes. Thickness of the layer beneath the tile and serration dimension of the spatula are chosen depending on the standard size of the tile. For acid resistant tile with big dimensions (with thickness from 20 mm) and in places undergoing severe intensive mechanical loads layer thickness shall be not less than 4 mm and tile joints filling depth can not exceed 1/3 of  tile thickness. Tile shall be laid on adhesion layer and pressed, providing necessary contact with tiled surface.

For decorative framing of joints

Caulking compound is applied with special spatula made from hard rubber or flexible metal spatula. Composition operation time depends on ambient air temperature. Recommended caulking compound application temperature is in the range from +15º С  up to +25º С.

For surface spackling

Ready to use caulking compound is applied to the prepared surface with a spatula or stainless steel gauging trowel. After the complete drying of the caulking compound surface is ready for finishing agents application.



After caulking compound application surface is cleaned with a damp sponge. To make cleaning more effective and less time-consuming the use of Himflex Cleaner is recommended. Tile surface cleaning he should be done before caulking compound became hard. In case of cleaning delay or if the composition has already started to harden tile surface can be cleaned with 10 % solution of spirit. Hardened caulking compound can be removed only by mechanical means.

Operation time and technological properties of the caulking compound depend directly on ambient air temperature. It is important to take into consideration that the temperature of facing materials and surfaces could be extremely different from the temperature in the premise. Recommended caulking compound application temperature is in the range from +12º С up to + 25º С. Optimal working temperature for epoxy compositions is in the range of 20º ± 2º С. In this conditions caulking compound has optimal viscosity and its viability is approximately 40 minutes



  • In hardening conditions from +15º up to +25º С surface is ready for use for pedestrian load in 24 hours;
  • Full mechanical and chemical loads are possible in 7 days;
  • In case of lower temperature the possibility of surface use can be delayed up to 3 days for pedestrian load and 14 days for chemical and full mechanical loads.



Recommended tile joint width while tile fitting is from 1 up to 10 mm. Joints of smaller width make their further decorative framing difficult.

 Tile dimension




 Tile thickness, mm








  consumption, kg/m2








Fitting consumption: with thickness of the layer beneath the tile of 2..3 mm is approximately 4,5..5 kg/m2 tile (excluding decorative framing).

Spackling consumption: with thickness of spackling layer of 1 mm is 1,5 kg/m2 surface.



Tools can be cleaned with acetone according to safety regulations on this category of substances.



  • Not recommended for construction (compensating) joints filling (for this purpose the usage of chemical resistant sealant Himflex PU 505 is more preferable);
  • Clean tile surface before the composition hardened (see Application unit);
  • Do not expose caulking compound to solvents earlier than in 1-2 weeks after application (depending on air temperature in the premises where works are carried out).



  • Wear protective gloves and glasses while working with composition;
  • If skin contact occurs, the area should be immediately and thoroughly washed with water;
  • If exposed to eyes, eyes should be immediately and thoroughly flushed with water and seek medical attention immediately.



  • Caulking compound components (Ingredients A and B) shall be stored in sealed containers in covered storage rooms;
  • Modified epoxy resin included in the composition is not affected by crystallization that allows storage and transportation even at below-zero temperatures;
  • In case of caulking compound transportation and storage at the temperature lower than 0º С, unpacking of containers shall be made not earlier than in 24 hours after their conditioning at the temperature of 25º ± 5º С. 

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