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Polyurethane based » Polytrans a1 » POLYTRANS A1

Description

POLYTRANS A1

    (Transparent, liquid-applied polyurethane waterproofing membrane)

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Specifications:
The POLYTRANS A1 is a transparent, hard-elastic, one component, aliphatic polyurethane, high-solids coating, used for long-lasting waterproofing. This high-technology coating is UV-stable, non-yellowing, weather stable, alkali and chemical resistant and even after aging it remains transparent and elastic.
The POLYTRANS A1 protects and waterproofs mineral surfaces against water penetration, frost, smog and acid rain. Aged and oxidized plastic surfaces look more transparent after coating with POLYTRANS A1. It waterproofs damaged glass surfaces and protects of glass fragments in case of breaking.
The POLYTRANS A1 is used also as a transparent binder resin for sandcarpet floor coating applications, especially in exterior applications where flexibility and UV stability is required.
The POLYTRANS A1  is using a unique curing system (moisture triggered), and unlike other similar systems it does not react with moisture (moisture-cured) and does not form bubbles.

Advantages:
- Simple application (one compo ready for use).
- UV stable, does get yellowish.
- Resistant to water and frost& crack-bridging
- Does not chalking, provides water vapor permeability, so the surface can breathe.
- Maintains its mechanical properties over a temperature span of -30oC to +90oC,  excellent adhesion to grate range of surfaces.
- Resistant to detergents, oils, seawater and domestic chemicals.
- Even if the membrane gets mechanically damaged, it can be easily repaired locally within minutes.

Usage: 
- Transparent waterproofing of Balconies and Terraces  - Transparent waterproofing of Ceramic surfaces
Transparent waterproofing of Glass - Transparent waterproofing of Glass-Brick walls - Transparent waterproofing and protection of Natural Stones - Transparent waterproofing of Transparent Plastics (e.g. Polyacrylate,  Polycarbonate) - Transparent waterproofing and protection of Wood
Also used as a transparent binder resin for sandcarpet exterior floor coating applications. 
Technical Data:

s/n PROPERTY RESULTS TEST METHOD
1 Composition Polyurethane high-solids pre-polymer  
2 Elongation at Break > 300% DIN EN ISO 527
3 Tensile Strength > 20 N/mm 2 DIN EN ISO 527
4 E-modulus > 30 N/mm 2 DIN EN ISO 527
5 Elongation at break after 2000h of accelerated aging (DIN EN ISO 4892-3, 400 MJ/m2) 298% DIN EN ISO 527
6 Tensile strength after 2000h of accelerated aging (DIN EN ISO 4892-3, 400 MJ/m2) 25.5 N/mm 2 DIN EN ISO 527
7 Gloss retention after 2000h of accelerated aging
(DIN EN ISO 4892-3, 400 MJ/m2)
Good DIN 67530
8 Surface chalking after 2000h of accelerated aging
(DIN EN ISO 4892-3, 400 MJ/m2)


No chalking observed.

Chalking grade 0

DIN EN ISO 4628-6
9  Water vapor permeability 5 gr/m2 .24hours EN ISO 12572
10 Hardness (SHORE A Scale) 85 ASTM D 2240
11 Resistance to Water Pressure No Leak (1m water column, 24h) DIN EN 1928 test A
12 Adhesion to absorbent ceramic tile >2,0 N/mm 2 (ceramic tile failure) ASTM D 903 (ELCOMETER)
13 Service Temperature -40oC to +90oC Internal Lab
14 Tack Free Time 6-8 hours Conditions: 20oC, 50% RH
15 Light Pedestrian Traffic Time 24 hours
16 Final Curing time 7 days
17 Chemical Resistance GOOD: Acidic & alkaline solutions (10%), detergents, oil, sea water.  

 

Application as a Transparent Waterproofing Coating:
Surface Preparation:

Careful surface preparation is essential for optimum finish and durability.
The surface needs to be clean, dry and sound, free of any contamination, which may harmfully affect the adhesion of the membrane. Maximum moisture content should not exceed 5%. New concrete structures need to dry for at least 28 days. Old coatings, dirt, fats, oils, organic substances and dust need to be removed.  Possible surface irregularities need to be smoothened. Any loose pieces and dust need to be thoroughly removed.             WARNING: Do not wash surface with water!

ATTENTION: Surfaces with trapped moisture (e.g. trapped moisture under balconies tiles) must be left to dry completely (max. 5% moisture), before the application of the POLYTRANS A1 coating.
WARNING: Do not apply the POLYTRANS A1 on ceramic surfaces with ascending nitric salts in the joints, without suitable pre-treatment. Do not apply the POLYTRANS A1 on surfaces treated in the past with active silane, siloxane, silicon or other water-repellents, because of expected poor adhesion. We recommend an adhesion test, if circumstances and surface history are not clear. On marble and granite please perform an adhesion test, to ensure that adhesion is proper.

Repair of cracks and joints:
The careful sealing of existing cracks and joints before the application is extremely important for long lasting waterproofing results.
Clean concrete cracks, hairline cracks, expansion joints and control joints of dust, residue or other contamination. Prime locally with the POLYPRIMER A1 and allow 2-3 hours to dry. Fill all prepared cracks and joints with HYDROSEAL sealant. Allow to cure.
Priming(Activation of surface):
Prime (activate) non-absorbent glazed surfaces, like glazed ceramic tiles, glass and glass bricks with TILE-PRIMER.
Apply the TILE-PRIMER by soaking a clean and dry cloth, and wipe the entire surface off. By this application procedure, you ensure that besides the chemical activation (priming) of the surface, the surface is getting also very effectively degreased. Change cloths often. Make sure that enough quantity of TILE-PRIMER is applied on the entire surface to primed and make sure that you do not leave any untreated spots.
ATTENTION: If applied on transparent plastics (polycarbonate, polyacrylate, etc) do not use the TILE-PRIMER.
Transparent Waterproofing membrane:
Pour the POLYTRANS A1 coating onto the primed surface and lay it out by roller or by suitable teeth trowel, until all surface is covered.
After 12 hours - but not later than 18 hours –apply a second layer of the POLYTRANS A1 coating, by using roller or brush.
For better waterproofing and wear resistance results, apply a third layer of the POLYTRANS A1 coating.
ATTENTION: Do not apply the POLYTRANS A1 over 1mm thickness (dry film) per layer. For best results, the temperature during application and cure should be between 5oC and 35oC.  Low temperatures retard cure while high temperature speed up curing.  High humidity may affect the final finish.
WARNING: The POLYTRANS A1 coating system is slippery when wet. In order to avoid slipperiness during wet days, sprinkle suitable aggregates onto the still wet coating to create an anti-slip surface. Please contact our R+D Dept. for more details.

Application as a Binder Resin for Sandcarpet Coating.:
Surface Preparation:

Careful surface preparation is essential for optimum finish and durability.
If applied on HYDROBLOCK make sure that the surface is clean, dry and sound, free of any contamination, which may harmfully affect the adhesion of the sandcarpet coating. Maximum moisture content should not exceed 5%. Possible surface irregularities need to be smoothened. Any loose pieces and dust need to be thoroughly removed. Do not wash surface with water!
If applied onto concrete, make sure that the surface is clean, dry and sound, free of any contamination, which may harmfully affect the adhesion of the membrane. Maximum moisture content should not exceed 5%. New concrete structures need to dry for at least 28 days. Old coatings, dirt, fats, oils, organic substances and dust need to be removed. Possible surface irregularities need to be smoothened. Any loose pieces and dust need to be thoroughly removed. Do not wash surface with water!
Priming:
Prime concrete surfaces with POLYPRIMER A1 or SB and broadcast silica sand while still wet.
Sandcarpet Coating:
Mix the POLYTRANS A1 with colored Silica Sand (cornsize 0,7-1,2mm or 2,0-3,5mm) in a mixing ratio of 1:10 (resin: sand) by weight, with a low speed mechanical mixer, until the mixture becomes fully homogenous.
Pour the mixture onto the prepared surface and apply by flat trowel.

Consumption:
0,8 - 1,2 kg/m2 in two or three layers.
This coverage is based on application by roller onto a smooth surface in optimum conditions. Factors like surface porosity, temperature and application method can alter consumption.

Packaging - Colors:
POLYTRANS A1 is supplied in 20 kg, 10 kg, 5 kg and 1kg pails. Pails should be stored in dry and cool rooms for up to 9 months. Protect the material against moisture and direct sunlight.  Storage temperature: 50-30oC.  Products should remain in their original, unopened containers, bearing the manufacturers name, product designation, batch number and application precaution labels.
The POLYTRANS A1 coating is supplied transparent.

Safety measures:
POLYTRANS A1 contains isocyanates. See information supplied by the manufacturer. Please study the Material Safety Data sheet
( M.S.D.S.) . PROFESSIONAL USE ONLY.
     

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Note for users:
The information contained in the present sheet are based on our own knowledge on the date of the last version. Users must verify the suitability and thoroughness of provided information according to each specific use of the product. This document must not be regarded as a guarantee on any specific product property. The use of this product is not subject to our direct control; therefore, users must, under their own responsibility, comply with the current health and safety laws and regulations. The producer is relieved from any liability arising from improper uses.

 
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