Sikagard®-1816

• WRAS approved for contact with wholsome water for domestic purpose (temperature up to +23 °C)

Epoxy polysulfide resin

6 months from production date

Sikagard®-1816 shall be stored in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +25 °C.

~1.23 kg/l (mixed, at 25 °C)

~100 %

Sikagard®-1816 is resistant to the various typically encountered chemicals:

Formaldehyde, Ammonium Hydroxide, Hydrochloric Acid, Phosphoric Acid, Sodium Chloride Saturated, Vegetable Oil, Sodium Hydroxide, Deionised Water, Diesel Oil, Gasoline, De-icing Salt, Chlorine water – 50ppm, etc.

Note: Consult your local Sika office for project specific recommendations.

Optimal: +20 °C min. / +25 °C max.

+15 °C min. / +30 °C max.

≥ 90 min (at 25 °C)

~7 days (at 25 °C)

Potable water tanks: Min. 14 days (at 25 °C)

Times are approximate and will be affected by changes in ambient conditions, particularly temperature and relative humidity.

~7 hours (at 25 °C)

Times are approximate and will be affected by changes in ambient conditions, particularly temperature and relative humidity.

~9 hours (at 25 °C)

Times are approximate and will be affected by changes in ambient conditions, particularly temperature and relative humidity.

• As a guide: ~0.25 L/m²/coat, minimum two coats are recommended.
• Dry film thickness: 500 microns. Higher thickness shall be applied with multiple layers application.
• The full pack of 10 liters of Sikagard®-1816 will cover 20 m² theoretically at 0.5 mm thickness.

Note: These figures are theoretical and do not include for any additional material required due to surface porosity, surface profile, variations in level and wastage, etc..

For application by airless spray, use a 45:1 or higher ratio pump, minimum 9mm dia. hoses and HD tip 19-23 thou.

All surfaces, concrete or metal shall be cleaned using high pressure water jetting, grit blasting or other methods approved by the engineer to
provide adequate mechanical key for excellent bonding as further indicated in the method statement. It is most important to ensure that thorough surface preparation is undertaken prior to application of the Sikagard®-1816 coating.

• Surfaces must be clean and dry.
• Use suitable methods to remove dirt, dust, oil, and all other forms of contamination that could interface with the adhesion of the coating.

CONCRETE

• Concrete must be cured for min. 28 days. Mechanically surface profile the substrate to CSP3 as described by the International Concrete Repair Institute.
• Voids and pinholes must be repaired with suitable products from Sikadur®, SikaEmaco® or Sikagard® range.

STEEL

• Prepare to SSPC-SP6.
• Surface profile 50 – 75 microns.
• Do not allow surface to re-oxidise before application of Sikagard®-1816.

OVERCOATING

• Where areas need to be over coated 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 over coating as for new work.

• Sikagard®-1816 is supplied in two preweighed components, base and reactor.
• No additions or omissions are required.
• Add reactor contents to the base component and mix thoroughly for at least 3 minutes, using a slow speed drill fitted with a suitable mixing paddle, until a uniform streak free colour is achieved.

• Sikagard®-1816 coating can be applied using good quality rollers or short haired brushes or by airless spray.
• Sikagard®-1816 should be applied in two coats of contrasting colours to ensure complete coverage free of any holidays.
• 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 area should be wiped with suitable solvent.

Clean all tools and application equipment with suitable thinner (Xylene / MEK / Acetone) immediately after use. Hardened and/or cured material
can only be removed mechanically.