Sikalastic®-532 Pronto

• Passes low temperature crack bridging (1.6 and 3.2 mm) per ASTM C1305/C957 (-26 °C)
• Crack-bridging test EN 1062-7
• Fire testing EN 13501-1

PU-modified poly-methyl-methacrylate based resin

From date of production:

Sikalastic®-532 Pronto and Sikafloor® Pronto Hardener: Stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between 5 and 30 °C (41 and 86 °F). Materials must be protected from heat, direct sunlight, moisture and impact. The materials should be stored between 18 to 24 °C (65 to 75 °F) for 24 hours prior to use for optimum handling properties. Do not store near open flame or an ignition source.

~ 0.99 kg/L (23 °C / 73 °F)

~ 100 %

~ 100 %

> 1.5 MPa (failure in concrete)

Short-term heat* up to 80 °C (176 °F) where exposure is only occasional (steam cleaning etc.)
*No simultaneous chemical and mechanical exposure and only in combination with Sikalastic®-511 / -518 Pronto as a broadcast system with approx. 3 - 4 mm thickness.

Amount of Sikafloor® Pronto Hardener required to be added to 9.5 L (2.50 US gal.) or 9.36 kg (20.63 lb) of Sikalastic®-532 Pronto is dependent on the ambient and substrate temperature.

Note: The hardener powder can also be ordered under the product name Sikadur® VPC Part B (280 g / 9.87 oz bottle)

0 °C (32 °F) min. / 30 °C (86 °F) max.

~ 80 % R.H. max.

Beware of condensation! The substrate and uncured floor must be at least 3 °C (5 °F) above dew point to reduce the risk of condensation or blooming on the floor finish.

0 °C (32 °F) min. / 30 °C (86 °F) max

≤4 % pbw moisture content. Test method: Tramex meter.

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

Before overcoating Sikalastic®-532 Pronto allow:

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

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

As Neat Base Coat Membrane: ~ 0.5 - 0.6 m²/L (20 - 25 ft²/ US gal.) at 64 - 80 mil (d.f.t / w.f.t) depending on the system applied.

As Wear Course Layer (Resin filled at 1:2 ratio, by weight with Sikalastic®-1 Pronto Filler): ~ 0.5 - 1.3 m²/L (19 - 54 ft²/ US gal.) at 30 - 83 mil d.f.t/w.f.t.) depending on the system applied.

These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage, etc. For detailed info, refer to the System data sheet Sikalastic® Pronto RB-5700 PUMA.

Mixing Tools
For indoor work, spark-free mixing equipment must be used (explosion-proof)! Sikalastic®-532 Pronto must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment. Use Jiffy-type mixer to ensure adequate dispersion when blending Sika Extender T into Sikalastic-532 Pronto for inclinations and vertical applications.

Over mixing must be avoided to minimize air entrainment. For ease of handling, 18.9 L (5 US gal.) units may be split (2 x 9.5 L / 2.5 US gal.) (refer to Mixing table). Always measure out components.

Neat Base Coat Layer

Mix Sikalastic®-532 Pronto thoroughly, for at least one (1) minute, then add the hardener in the correct quantity and mix for one (1) additional minute.

Broadcast Wear Course:

Mix Sikalastic®-532 Pronto thoroughly 1:2 ratio, by weight with Sikalastic®-1 Pronto Filler for at least one (1) minute, then add the hardener in the correct quantity and mix for one (1) additional minute. Hardener dosage is based on Sikalastic®-532 Pronto quantity prior to addition of Sikalastic®-1 Pronto Filler.

For estimating purposes: ~ 1 L of slurry mixture will require ~ 0.6 L (0.6 kg) Sikalastic®-532 Pronto mixed with ~ 1.2 kg Sikalastic®-1 Pronto Filler.

Prior to application, confirm substrate moisture content, relative air humidity and dew point. For exterior applications, apply when temperatures are falling. If applied during rising temperatures “pin holing” may occur from rising air.

Levelling
Rough surfaces need to be levelled first. Therefore use e.g. Sikalastic®-511 Pronto Primer at 1:2 ratio, by weight with Sikalastic®-1 Pronto Filler as a leveling mortar (see System Data Sheet). Apply by squeegee / trowel to the required thickness.

Neat Base Coat Layer
Sikalastic®-532 Pronto is poured, spread evenly by means of a serrated trowel or V-notched squeegee. Roll immediately in one direction with a spiked roller to ensure even thickness and to remove entrapped air.

Broadcast Wear Course
Sikalastic®-532 Pronto mixed at 1:2 ratio, by weight with Sikalastic®-1 Pronto Filler is poured, spread evenly by means of a serrated trowel or V-notched squeegee. Roll immediately in one direction with a spiked roller to ensure even thickness and to remove entrapped air. Immediately afterwards, broadcast with quartz sand.

Note: Broadcast quartz sand in three (3) steps, begin with light application, building up to excess in order to ensure an even distribution of quartz sand and to avoid misplacing of the material. The material cures very quickly and therefore application must be carried out steadily and “wet on wet” in order to achieve joint-free floors.

Clean all tools and application equipment with Urethane Cleaner and Thinner immediately after use. Hardened and/or cured material can only be removed mechanically.