Technical data sheet THERMOPAL®-ULTRA WTA rapid-setting restoration plaster
Material number
Contents
Unit of quantity
Packaging
Colour
201491004
25
KG
Bag
Grey
Product features Restoration plaster mortar (R) after DIN EN 998-1 Cementitious pre-blended dry mortar WTA-certified Rapid, reactive binding even with critical site conditions Application up to 30-mm layer thickness in one application step
Advantages Extremely low shrinkage Rapid build-up of hydrophobicity Sulphate resistant Soon ready for rubbing down Vapour permeable
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30/01/2025
Technical data sheet THERMOPAL®-ULTRA Areas of application For restoring living spaces for private and commercial areas in case of a high salt load in the masonry work in case of damp damage due to condensation for building sites under time pressure for base surfaces For interior and exterior use
Technical Data Material properties Product components Base material Consistency Grain size max Bulk density of fresh mortar Compressive strength (classification DIN EN 998-1) Tensile adhesion strength (28 days) Capillary water absorption Water vapour diffusion coefficient µ Water penetration Thermal conductivity λ (Lambda) Durability (frost resistance) Classification of the reaction to fire in accordance with DIN EN 13501-1
1 component system Pre-blended dry mortar Filler consistency < 2 mm approx. 1 kg/dm³ CS II ≥ 0.08 N/mm² > 0.3 kg/m² < 15 ≤ 5 mm approx. 0.27 W/m * K Resistant when applied in accordance with TM A1
Mixing Mixing time Water addition Yield, litre
approx. 3 minutes From 7.0 l to 7.5 l per 25 kg approx. 30 l per 25 kg
Application Substrate/application temperature Pot life Method of application, max. layer thickness per application step Consumption pro m² and cm layer thickness Hardening process per 24 hours
approx. 5 - 30 °C approx. 45 minutes approx. 9 kg/m² min. 1 mm
Processing equipment Aids/tools Stirrer (approx. 500-700 rpm) Suitable mixing paddle Trowel Flat trowel Plasterer’s darby Grid float Spray equipment
Manual processing Can be smoothed with a smoothing tool Can be trowelled off
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Technical data sheet THERMOPAL®-ULTRA Machine application THERMOPAL®-ULTRA can be mechanically applied. For precise information, see the additional Technical Information No. 43.
Preparing the substrate Requirement for substrate 1. Free of adhesion inhibiting substances 2. Pore open 3. Load-bearing
Preparing the details Scrape out crumbly masonry joints approx. 2 cm deep and clean the surfaces mechanically.
Preparing the surface 1. Remove old, damaged plasters, paints or coatings from the substrate up to 80 cm above the visible damaged area or the area delimited through inspections. The substrate must be prepared so that it is load-bearing. 2. Pre-treat it with ESCO-FLUAT in case of salt contamination. Apply a semi-covering splatterdash coat of THERMOPAL-SP as a bond coat (degree of coverage approx. 50%). In conjunction with mineral waterproofing slurries, apply the adhesive splatterdash coat over the entire surface with 100% coverage.
Application Measures depending on the degree of salting after WTA
Mixing 1. 2. 3. 4.
Pour the required quantity of water into a clean mixing bucket. Completely add the powder and mix until homogeneous and free from lumps. The mixing time is ca. 3 minutes. After a short activation time, stir again.
Application 1. 2. 3. 4. 5. 6. 7.
THERMOPAL®-ULTRA can be applied on the surface in a single application step with a layer thickness up to 30 mm. For thicker layers, render in several layers. In this case, strike off the previous layer with a plasterer’s darby, and immediately after stiffening, roughen up horizontally and allow to dry. Striking off is done with a suitable tool (float, trowel or plasterer’s darby), depending on the application, within the pot life. After sufficient standing time, the surface may be felt boarded matt damp or rubbed down. Alternatively, the surface can also be treated with a grid float. Grid floating is performed depending on the ambient conditions. If necessary, the plaster surface can be overcoated after one day with THERMOPAL® FS33 fine mortar.
Storage conditions Storage Store in a cool and dry place. Min. 9 months in the original canister. Promptly use opened container.
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Technical data sheet THERMOPAL®-ULTRA Disposal Product residues can be disposed of in accordance with disposal code AVV 17 01 01.
Notes Protect surfaces that are not to be treated from the effects of THERMOPAL®-ULTRA! Very damp substrates may require longer waiting times before they can be rubbed off. With low strength substrates, a corrosion-resistant plaster base must be attached mechanically to the substrate prior to plastering. (Cannot be used with internal waterproofing). With difficult site conditions (e.g. inhomogeneous masonry work, waterproofed masonry work, use in exterior area under changing weather conditions and thick-layer plaster build-ups, etc.), an alkali-resistant glass scrim with a mesh size of 7 × 7 mm or 10 × 10 mm can be used to increase the cracking resistance. The inlay of the plastering fabric is applied in the upper third of the plaster layer. Rubbing prematurely or too intensively causes a binder concentration on the surface and can cause stress cracks. Observe the WTA "Restoration plaster systems" data sheet for planning and implementing of restoration measures. Smooth surfaces are achieved by trowelling with THERMOPAL®-FS33. Protect from strong solar radiation and draughts. Highly vapour permeable dispersion silicate paints must be used for the colour design.
Observe applicable safety data sheet! GISCODE: ZP1 Explanations Conformity / Declaration / Verification
The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you in the case of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description does not release the user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued.
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