Sika FerroGard 950 IN

DESCRIPTION

Sika FerroGard-950 IN is two component, low

solvent, zinc rich epoxy resin based protective coating

and anti-corrosive primer for steel. The use of Sika

FerroGard-950 IN provides a method of applying galvanic

protection by standard paint application methods.

It is a cold galvanizing compound preventing corrosion

of steel substrates similar to hot dip galvanizing.

When applied to a ferrous surface, the zinc in

Sika FerroGard-950 IN acts as the anode and sacrifices

itself to protect the steel, which acts as the cathode.

USES

Single coat finish on steel objects which are subject

to atmospheric exposure or in multiple coat paint

systems as a protective primer

Anti-corrosion coating for steel structures which are

subjected to mechanical wear, e.g., weirs, interior of

pressure pipe line, gates, steel liner of penstocks and

tanks, etc.

Protective coating for reinforcement steel bars in reinforced

concrete and as a repair material for galvanized

steel which has been damaged by cutting,

punching, drilling or mechanical damage suffered

during transit or during erection works.

IMPORTANT

Not recommended for:

Immersion without suitable top coats

Exposure to strong acids and alkalis

CHARACTERISTICS / ADVANTAGES

Excellent corrosion protection

Easy to apply

Fast application

High mechanical properties

Good adhesion to substrate

Fast drying and curing

Resistant to weathering

Single coat protection for steel

PRODUCT INFORMATION

Chemical base Zinc rich epoxy resin

Packaging Part A+B 2.00 kg

Part A 1.88 kg

Part B 0.12 kg

Shelf life 12 months from date of production

Storage conditions The product must be stored properly in original, unopened and undamaged

sealed packaging, in dry conditions at temperatures between +5 C

and +35 C. Protect from frost.

Appearance / Colour Part A Grey liquid

Part B Light brown liquid

Density 2.15 kg/L (Part A+B mixed, +27 C

Total solids 76 % Zinc content in mix 66 % Zinc content in dry film > 85 % TECHNICAL INFORMATION Tensile adhesion strength 2.0 N/mm2 (steel substrate, 7 days, +30 C) (ASTM D4541) Thermal resistance Permanent exposure of dry heat upto +50 C (No simultaneous chemical and mechanical exposure) SYSTEM INFORMATION Systems As primer coat (exposed conditions) Primer coat 1 Sika FerroGard-950 IN Top coat Suitable Sikagard protective coating As primer coat + top coat (covered conditions) Primer coat 1 Sika FerroGard-950 IN Top coat 1 Sika FerroGard-950 IN Contact Sika representative for available options of Sikagard protective coating. APPLICATION INFORMATION Mixing ratio Part A : Part B = 94 : 6 (by weight) Consumption 0.1500.250 kg/m2 These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level and wastage etc. Ambient air temperature +8 C min. / +35 C max. Relative air humidity 75 % max. Substrate temperature +8 C min. / +35 C max. Substrate moisture content < 4 % Test method: Sika Tramex meter, CM - measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet). Pot life 2 hours (2 kg, +30 C) Curing time Temperature Full cure +10 C 10 days +20 C 7 days +30 C 7 days Tack free time 20 min (+30 C) Waiting time / Overcoating Before applying Sika FerroGard-950 IN on Sika FerroGard-950 IN Temperature Overcoating time +10 C 4 hours +20 C 2 hours +30 C 1 hour Before applying top coat on Sika FerroGard-950 IN Temperature Overcoating time +10 C 8 hours +20 C 4 hours +30 C 2 hour

BASIS OF PRODUCT DATA All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. ECOLOGY, HEALTH AND SAFETY User must read the most recent corresponding Safety Data Sheets (SDS) before using any products. The SDS provides information and advice on the safe handling, storage and disposal of chemical products and contains physical, ecological, toxicological and other safety-related data. APPLICATION INSTRUCTIONS EQUIPMENT Mixing Equipment Electric single paddle mixer (300400 rpm) Application Equipment Brush: Soft bristle Spray: Airless spray machine SUBSTRATE QUALITY The substrate must be clean, dry and free of all contaminants such as rust, dirt, oil, grease, coatings and surface treatments, etc. If in doubt apply on a test area first. SUBSTRATE PREPARATION Steel must be blast cleaned to Sa 2.5 according to EN ISO 12944, Part 4. Alternatively, use a rust remover such as Sika Rustoff-100 and use waterjet to make steel rust free. MIXING IMPORTANT Mix full units only Mix Part A (resin) until the material is dispersed and a uniform colour is achieved. 1. 2. Add Part B (hardener) to Part A. Mix Part A+B continuously for 2 minutes until a uniformly coloured mix is achieved. Note: Avoid excessive mixing to minimise air entrainment. 3. To ensure thorough mixing, pour materials into another container and mix again for 1 minute to achieve a smooth and uniform mix. 4. 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. 5. APPLICATION Brush Application Apply 1 or 2 coats of coating with a soft brush. Spray Application Using a airless low pressure sprayer, apply a single application sufficient to wet the surface. Avoid over application. CLEANING OF TOOLS Clean all the tools with Sika Thinner C immediately after use. Hardened material can only be removed mechanically. LOCAL RESTRICTIONS Note that as a result of specific local regulations the declared data and recommended uses for this product may vary from country to country. Consult the local Product Data Sheet for exact product data and uses. LEGAL NOTES The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika's recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the products suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.