Sikalastic®-511 Pronto Primer

Reactive Acrylic Resin

Sikalastic®-511 Pronto Primer 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.

~ 0.98 kg/L (23 °C / 73 °F)

~ 100 %

~ 100 %

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®-532 / -518 Pronto as a broadcast system with approx. 3 - 4 mm thickness.

The amount of Sikafloor® Pronto Hardener required to be added to 9.5 L (2.50 US gal.) or 9.31 kg (20.52 lb) of Sikalastic®-511 Pronto Primer 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 % RH 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 surface finish

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

The substrate moisture content must not exceed 4 % pbw measured by Tramex.

The quantity of hardening powder is always related to the quantity of resin.

Before applying Sikalastic®-532 Pronto on Sikalastic®- 511 Pronto Primer allow:

*No time limit, the Sikalastic®-Pronto materials can be applied on each other after thorough cleaning.

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

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

Mix Part A thoroughly, then add the hardener in the correct quantity and mix for a further one (1) minute. Over mixing must be avoided in order 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.

Mixing Tools

Important: For indoor work, spark-free mixing equipment must be used (explosion-proof)! Sikalastic®-511 Pronto Primer must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment.

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

Priming:

Apply Sikalastic®-511 Pronto Primer making sure that a continuous; pore-free coat covers the substrate, i.e. ~ 2.5 m²/L (100 ft²/US gal.) at 16 mil d.f.t./w.f.t..

Sikalastic®-511 Pronto Primer has to be applied evenly without leaving puddles by means of a paint roller or brush. If squeegee is used, the surface must always be back rolled afterwards. Matte and heavily absorbent patches must be reprimed ‘wet-on-wet’ before hardening, until the pores are closed up. The freshly applied priming coat can be blinded lightly with 0.7 - 1.2 mm (16 - 24 US sieve), consumption approx. 0.2 - 0.5 kg/m².

After priming, an optional levelling coat can be used by combining Sikalastic®-511 Pronto Primer and Sikalastic®-1 Pronto Filler (mix at 1:2 ratio, by weight), see system data sheet for Sikalastic® Pronto RB-5700 PUMA for details.

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