Sikagard®-62 MYI

12 months from the date of production

Store in original unopened packaging in a cool and dry place.

~1.47 kg/l

85 ± 1 %

Contact Sika Technical Service Department for specific information on chemical resistance. 

~60 °C

Part A : Part B = 6 : 1 by weight

+10 °C min. / +30 °C max.

80 % r.h. max.

Beware of condensation!

The substrate must be at least 3 °C above dew point to reduce the risk of condensation or blooming on the surface finishing.

Note: Low temperatures and high humidity conditions increase the probability of blooming.

+10 °C min. / +30 °C max.

< 4 % pbw moisture content

Test method: Tramex Moisture Meter or Oven-dry-method.

No rising moisture according to ASTM D 4263 (Polyethylene sheet method)

~1 hour at 30 °C

Note: Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Before applying Sikagard®-62 MYI on Sikagard®-62 MYI allow:

Sika recommends the latter coat of Sikagard®-62 MYI be applied as soon as possible after the minimum overcoating time to reduce the risk of possible contamination to the previous coat. 

Note: The times are approximate and will be affected by changing ambient conditions.

~3.6 m²/kg/coat at 150 microns thickness, 2 coats

These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage. 

Concrete

• New concrete shall be allowed to cure for at least 28 days.
• The concrete substrate must be sound and of sufficient compressive strength (minimum 25 N/mm²).
• The concrete substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments that may inhibit bonding.
• Concrete substrates must be prepared mechanically using abrasive methods (eg. grinding, shot-blasting) to remove laitence and weak concrete, and expose surface defects such as blowholes and voids.
• Repairs to the substrate, filling of blowholes/voids and surface levelling must be carried-out using appropriate products from the Sikadur® and Sikagard® range of materials.
• All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum.

Steel Surface

• Steel surface shall be prepared using dry blasting method (eg. sand blasting) to SSPC-SP10 or SA 2½, near white metal finish with a minimum blast/surface profile of 35 to 50 microns.
• All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum

Stir each component separately using an electric drill (~750 rpm) fitted with a paint mixer or a wing type mixing paddle. Then pour the entire content of Part B into Part A and continue to mix for 2–3 minutes until a homogenous mix is observed. Decant the mixed material into another clean container and mix for another 30–60 seconds. Sikagard®-62 MYI is now ready to the applied to the substrate.

Important Note:

• Mix only full set of Sikagard®-62 MYI to avoid problems associated with curing and/or drying of the product.
• Manual mixing or hand mixing of Sikagard®-62 MYI is not recommended. Always use an electrical/mechanical mixer. For more information on mixing, please contact Sika Technical Service Department.

Priming

Priming is not required provided the substrate is adequately prepared. If concrete surface is porous, treat surface with primer. A second coat of primer may be required if the substrate is very porous.

Airless and conventional spray

For spray application, thin Sikagard®-62 MYI up to 15 % with Sika® Thinner C to improve workability. Apply Sikagard®-62 MYI with two coats of full strength. Application must be carried out in accordance to manufacturer’s written instruction.

Roller and brush

For less demanding job, rolling and brushing is acceptable.