Sika® Icosit® KC 220/60 TX
2-Part multipurpose epoxy resin binder
Sika® Icosit® KC 220/60 TX is a 2-part multipurpose epoxy resin binder used for producing a bonding bridge, pourable epoxy grout and epoxy mortar. It has low shrinkage, good mechanical strengths and is suitable for many static or dynamic precision applications.
- Good adhesion on concrete and steel substrates
- High mechanical properties
- Can be bulked with sand to produce epoxy grouts and mortars
- Used by DB AG (German railways) and a number of other European Railway Authorities
Usage
- Grouting and fixing anchor bolts of rail fixing systems (bridges, tunnel track slabs, train washing installations, track turn tables, crane tracks
- Grout for undersealing rail baseplates, bridge bearings and machine foundations
- Bonding bridge between old concrete and freshly poured concrete / cement mortar
Advantages
- Good adhesion on concrete and steel substrates
- High mechanical properties
- Can be bulked with sand to produce epoxy grouts and mortars
- Used by DB AG (German railways) and a number of other European Railway Authorities
Packaging
Part A (Resin) | 3,6 kg container |
Part B (Hardener) | 4,4 kg container |
A + B | 8,0 kg |
Colour
Part A | Amber |
Part B | Beige |
Product Details
Chemical Base
2-component epoxy binder
Shelf Life
24 months from date of production
Storage Conditions
The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +25 °C. Always refer to packaging.
Density
Part A | ~1,2 kg/l |
Part B | ~1,6 kg/l |
A + B | ~1,4 kg/l |
Compressive Strength
Mixed with quartz sand 0,4 mm –0,7 mm 1 : 1 (p.b.w) | 90–100 N/mm² |
Mixed with quartz sand 0–4 mm 1 : 6 (p.b.w) | 40–50 N/mm² |
Flexural Strength
Mixed with quartz sand 0,4 mm - 0,7 mm 1 : 1 (p.b.w) | 30–40 N/mm² |
Mixed with quartz sand 0–4 mm 1 : 6 (p.b.w) | 10–20 N/mm² |
Thermal Resistance
-40 °C up to +60 °C
Application
Mixing Ratio
Part A : Part B = 45 : 55 (p.b.w.)
Part A : Part B = 53 : 47 (p.b.v.)
Layer Thickness
Application | Layer Thickness |
Epoxy grout for filling wide joints and undersealing baseplates | 15 - 80 mm |
Epoxy grout for fixing anchor bolts | diameter of anchor hole: min. 7 mm Sika® Icosit® KC 220/60 TX + diamter of anchor bolt Length of anchor hole: min. 115 mm |
Epoxy mortar | max. 40 mm |
Product Temperature
~+20 °C.
Ambient Air Temperature
+5 °C min. / +35 °C max.
Substrate Temperature
+5 °C minimum / +35 °C maximum
Substrate Moisture Content
Dry
Pot Life
Temperature | 5 °C–10 °C | +20 °C |
Time | ~90 minutes | ~60 minutes |
Potlife begins when all parts have been mixed. It is shorter at high temperatures and longer at low temperatures. The greater the quantity mixed, the shorter the potlife.
Curing Time
Temperature | 5 °C–10 °C | +20 °C |
Time | ~48 hours | ~18 hours |
Consumption
Application | Sika® Icosit® KC 220/60 TX |
Bonding bridge | ~0,8 – 1,2 kg/m² |
Primer | ~0,5 – 0,6 kg/m² |
Application | Mixing ratio | Sika® Icosit® KC 220/60 TX | Quartz sand |
Epoxy grout | 1 : 1 (p.b.w) 1 litre of grout | 0,85 kg | 0,85 kg Granulometry: 0,4–0,7 mm |
Epoxy mortar | 1 : 6 (p.b.w) 1 litre of mortar | 0,24 kg | 1,44 kg Granulometry: 0–4 mm |
SUBSTRATE QUALITY
Concrete
Concrete must be at least 3–6 weeks old.
Substrate surfaces must be sound, clean, dry or matt damp. Free from standing water, ice, dirt, oil, grease, coatings, laitance, efflorescence, old surface treatments, all loose particles and any other surface contaminants that could affect adhesion.
Steel
Surfaces must be clean, dry, free from oil, grease, coatings, rust scale, all loose particles and any other surface contaminants that could affect adhesion.
SUBSTRATE PREPARATION
Concrete
Substrate must be prepared by suitable mechanical preparation i.e. very high pressure water blasting, needle gun, scabbler or bush hammer to achieve a laitance and contaminant free, open textured surface. To improve adhesion, apply Icosit® KC 330 Primer as a primer on absorbent substrates (concrete). Any pockets or holes for structural fixings must also be cleaned of all debris.
Steel
Substrate must be prepared by suitable mechanical preparation i.e. abrasive blast cleaning techniques or high pressure water-blasting, angle grinder to achieve a bright finish or to a standard equivalent to Sa 2½ as per EN ISO 12944.
For additional corrosion protection, use SikaCor®-299 Airless and Icosit® KC 330 Primer in combination to coat the steel surfaces.
Immediately blind (broadcast) the freshly applied coated surfaces with quartz sand (0,4–0,7 mm granulometry).
Avoid dew point conditions.
All substrates
All dust and loose material must be completely removed from all substrate surfaces before application of the product by vacuum / dust removal equipment.
Shutter Formwork
Where formwork is to be used, all formwork must be of adequate strength, treated with release agent and sealed to prevent leakage.
For grouting application, prepare the formwork to maintain a minimum 100 mm grout head to assist with placement. A grout box equipped with an inclined trough attached to the formwork will also improve the grout flow and reduce air voids.
MIXING
Prior to mixing all parts, mix separately Part A (resin) using an electric single paddle mixer (speed ~ 600–800 rpm.) or other suitable equipment for ~60 seconds. Add Part B (hardener) to Part A and mix part A + B continuously for ~60–90 seconds until a uniformly coloured mix has been achieved. When Parts A and B have been mixed. Gradually add the appropriate granulometry of dried quartz sand. Mix for a further ~60–90 seconds until a uniform mix has been achieved. Excessive mixing must be avoided to minimise air entrainment. During the final mixing stage, scrape down the sides and bottom of the mixing container with a flat or straight edge trowel at least once to ensure complete mixing. Mix full units only. Mixing time for A + B + quartz sand = ~3–4 minutes.
For adding sand to produce an epoxy mortar. Using a forced action / rotating pan / double paddle / trough type or other suitable equipment (free fall mixers must not be used).
CLEANING OF TOOLS
Clean all tools and application equipment with Sika® Reinigungsmittel-5 immediately after use. Hardened material can only be removed mechanically.