Contact us if document is not available
Sikagard®-185
(former MProtect 185)
Non-toxic, solvent free, high build, protective epoxy resin coating designed for spray application
Sikagard®-185 is a protective high build epoxy resin coating specifically developed to protect concrete. Supplied as a two-component system comprising pigmented base and a hardener in 1:1 by volume to produce an easily sprayable and chemical resistant finish.
It is solvent free and can be used with safety in small rooms or tanks without the need to provide special ventilation. Sikagard®-185 coatings will not support the growth of bacteria.
- Durable
- Non-toxic
- Waterproof and protective
- Chemical resistance
- Solvent free
- High build coating
Contact us if document is not available
Usage
- On precast pipe-linings
- External pipe coating
Advantages
- Durable
- Non-toxic
- Waterproof and protective
- Chemical resistance
- Solvent free
- High build coating
Packaging
400 L units, supplied in two pre-weighed components, base and reactor
Colour
- High gloss, heavy bodied, ultra dense surface. Hygienic and easily cleaned.
- Available in dark grey and black colour.
Product Details
Shelf life
3 months
Storage conditions
Sikagard®-185 shall be stored in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +30 °C.
Density
~1.35 g/l (mixed, at 25°C)
Abrasion resistance
≤ 50 mg (CS 10 Wheel, 1000 g, 1000 cycles) | (ASTM D4060) |
Tensile adhesion strength
~2 N/mm2 on concrete | (ASTM D4541) |
Water absorption
After immersion – Nil After immersion and boiling – 0.1% | (ASTM D570) |
Application
Layer thickness
Min. 400 microns DFT
Pot Life
~30 min (25°C)
Curing time
Initial cure | Final cure |
24 hours | 7 days |
Consumption
5 m² / L / coat at 200 microns WFT, min. two coats are recommended.
Note: This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variations in level and wastage, etc..
EQUIPMENT
- For application by airless spray, use a 45:1 or higher ratio pump, minimum 9 m dia hoses and HD tip 19-23 thou.
- Automated spray equipment needs to be calibrated and suitable nozzle should be used.
SUBSTRATE PREPARATION
- The substrate should be a smooth or semi-smooth sound concrete surface.
- It is most important to ensure that thorough surface preparation is undertaken prior to application of the Sikagard®-185 coating.
- Ensure concrete is free from excessive laitance, grease, oil, curing compound, etc.
- Ensure concrete is sound, cutting back where necessary and repairing with suitable products from SikaEmaco®, Sikadur® or Sikagard® repair system range.
- Ensure all blow holes and surface imperfections are made good prior to application of the Sikagard®-185 coating.
- Contamination by oil, grease, fats etc. must be removed before other forms of preparation begin.
|
|
OVERCOATING
|
|
- Where areas need to be overcoated due to damage, etc. it is important that the areas to be treated are well abraded using a stiff rotary wire brush or coarse sand paper to give an adequate key.
- Completely strip off any unsound coating and proceed with overcoating as for new work.
APPLICATION
- Sikagard®-185 coating can be applied using good quality rollers or short haired brushes or preferably by automated airless spray equipment.
- Prior to the application of each coat, surface should be examined for signs of pin-holing, etc.
- Where pin-holing is evident these should be filled using Sikadur® ADH 2200, thixotropic epoxy resin filler.
- For surface improvment, a thin coat of Sikagard®-720 EpoCem (epoxy/cement micro mortar), can be applied.
- If the application is delayed more than 16 hours at 40°C or 36 hours at 20°C after the previous coat (the higher the ambient temperature, the shorter the maximum period), then the previous coat must be thoroughly abraded to give an adequate mechanical key and solvent wiped.
CLEANING OF EQUIPMENT
- All equipment must be cleaned immediately after use with a suitable thinner (Xylene / MEK / Acetone).
- Similar cleaning procedures should be adopted for break periods exceeding 15 minutes duration.