Sikadur®-12 Pronto

• CE Marking and Declaration of Performance to EN 1504-6 - Anchoring of reinforcing steel bar.
• CE Marking and Declaration of Performance to EN 13813 - Resin screed material for internal use in buildings.

Reactive acrylic resins

12 months from date of production

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Values at +23 °C

Flowable repair mortar (5–30 mm per layer)

Hand applied repair mortar (20–100 mm per layer)

Grout (5–30 mm layer)

*Optional, recommended for thin layer applications of Sikadur®-12 Pronto.

For horizontal floor repairs, for slip resistant surface broadcast with quartz sand 0,4–0,7 mm.

-40 °C min. / +40° C max.

Resistant to many chemicals. Contact Sika Technical Services for additional information.

Part A : Part B = 1 : 8 (by weight)

The mixing ratio can be varied, depending on the required consistency.

Limitations: Part A : Part B = 1 : 7 to 1 : 11 (by weight).

At a mixing ratio of 1 : 7, Sikadur®-12 Pronto can be used as a flowable mortar or grout.

Sikadur®-12 Pronto can be filled with quartz sand. Maximum 1 part quartz sand per 2 parts of Sikadur®-12 Pronto (by weight).

Additional layer thicknesses can be a applied in successive layers once each layer has cooled and hardened sufficiently. Where possible, the surface of the freshly applied intermediate layers should be scratched to form a key for subsequent layers.

–10 °C min. / +30 °C max.

80 % maximum

Beware of condensation.
The substrate and uncured applied floor material must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the surface of the applied product. Low temperatures and high humidity conditions increase the probability of blooming.

–10 °C min. / +30 °C max.

≤4 %  parts by weight

Test method: Sika®-Tramex meter, CM-measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet).

Pot-life 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 pot-life. To obtain longer workability at high temperatures, the mixed adhesive may be divided into smaller quantities. Another method is to chill parts A+B before mixing (although not below +5 °C).

Before applying Sikadur®-12 Pronto on Sikafloor®-10 Pronto N allow:

Before applying Sikadur®-12 Pronto on Sikadur®-12 Pronto allow:

*No time limit Sikadur®-12 Pronto can be applied onto Sikafloor®-10 Pronto N or Sikadur®-12 Pronto after thorough cleaning.

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

*  quartz sand mix:

1 pbw quartz sand 2–3 mm

1 pbw quartz sand 3–5 mm

5 pbw quartz sand 5–7 mm

pbw = parts by weight

Substrate preparation

• Mechanical or very high pressure water-blasting.

Steel reinforcement

• Abrasive blast cleaning techniques or high pressure water-blasting.

Mixing

• Small quantities - low speed (300–400 rpm) electric hand-held paddle mixer with a suitable mixing container.
• Large quantities or machine application - suitable forced action mixer. 

Application

• Hand applied – plasterers hawk, trowel. 
• Flowable applied - pouring container.
• Grout - pouring container.

Finishing

• Trowel (PVC or wooden).
• Steel float.

Concrete

Concrete and mortar must be at least 3–6 weeks old.

Substrate surfaces must be sound, clean, dry, 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 reinforcement

Surfaces must be clean, dry, free from oil, grease, coatings, rust, scale, all loose particles and any other surface contaminants that could affect adhesion.

Wood

Substrate surfaces must be sound, clean, dry and free from dirt, oil, grease, coatings, all loose particles and any other surface contaminants that could affect adhesion.

Concrete

Delaminated, weak, damaged and deteriorated substrates, and where necessary sound substrate, must be removed by suitable preparation equipment. Ensure sufficient concrete is removed from around corroded reinforcement to allow cleaning, corrosion protection coating (where required) and compaction of the repair material.

Repair surface areas must be prepared to provide simple square or rectangular layouts to avoid shrinkage stress concentrations and cracking while the repair material cures. This can also avoid structural stress concentrations from thermal movement and loading during the service life.

All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and / or vacuum.

Steel reinforcement

Surfaces must be prepared using suitable preparation equipment to Sa 2 (ISO 8501-1) or bright metal.

Shutter formwork for flowable repair and grout

Where formwork is to be used, all formwork must be of adequate strength, treated with release agent and sealed to prevent leakage.

For grout application, a header box or hopper must be constructed on one side of the formwork so that a grout head of 150–200 mm can be maintained during the grouting operation.

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.

Mixing manually
Pour required quantity of Part A into the plastic bag containing Part B. Tie up the plastic bag and mix by shaking thoroughly by hand. To pour out the mixed material, simply cut off a tip of the plastic bag.
 
Mixing using a container
Pour the required quantity of Part A into suitable mixing container. Slowly add Part B powder whilst constantly mixing. Overmixing must be avoided to minimise air entrapment. By adding the powder component (and quartz sand if required) gradually, the required consistency can be obtained.

Mix only the quantity which can be used within its pot-life.

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be mechanically removed.