2K PUR Topcoat PLUS | HP-PP
HP-PUR-PLUS | 2K PUR Topcoat
HP-PUR-PLUS is a high-quality, solvent-based 2K PUR topcoat for glossy and weather-resistant coatings.Ideally suited for coatings in industry, boat and sports equipment construction, pond and pool coatings, etc.
✔ Brilliant colours
...for highest demands and long-lasting UV protection!!!
deliverable in nearly all RAL-colours
✔ Very good resistance
...to weathering and to continuous exposure to water
✔ Easy to apply
... by rolling and brushing.
For new coatings or renovations in combination with our epoxy resins.
Properties and fields of application:
- Deliverable in nearly all RAL-colours
- Forms a shiny surface with high abrasion resistance
- Suitable for coating machines, deck superstructures, furniture, containers, GRP parts, pond and pool coatings
- Very good resistance to water and chemicals (if the dosage regulations for the chemicals used for swimming pool hygiene are observed), suitable for continuous water exposure
- Long-lasting colour stability through good UV protection
- Excellent fullness of the paint film
- Ready for rolling and brushing (spraying in the commercial sector is possible by adding the thinner HP-IMC-X)
- Deliverable in 1,5kg container (sufficient for approx. 10m²) and in 3kg containers (sufficient for approx. 20m²)
Does not adhere to PE, PP, PTFE, ...
Not suitable for new polyester coatings.
Notes on processing:
The HP-PUR-PLUS can be applied directly to the fresh epoxy laminate (epoxy resins from HP-Textiles). For an optimal bond without intermediate sanding, the last layer of the underlying epoxy coating must not be older than 24h (at max. 20°C ambient temperature). A firm but still slightly sticky substrate is ideal. If the coating is applied after 24 hours, the entire substrate must be sanded, otherwise the adhesion may be too low.Notes on the application procedure:
The HP-PUR-PLUS is adjusted ready to roll and spread. For application we recommend our varnishing rollers HP-L1032 (width 25cm) and HP-L1034 (width 10cm) or suitable varnishing brushes or surface brushes.Conventional paint rollers available in DIY stores cannot be recommended due to the formation of bubbles during application!
Frequently asked questions
Why HP-PUR-PLUS (Polyurethane)?
Polyurethane coatings are particularly suitable for coatings of pools or swimming ponds. The HP-PUR-PLUS easily withstands the high demands, such as the mechanical stress caused by pressure or the extreme stress caused by strong UV radiation. An epoxy or polyurethane coating not only helps to prevent moisture from penetrating into the building structure, it also makes it more difficult for biological substances to settle, which are a basis for vermin, fungal and mould infestation. In the long term, the fabric of the construction can be protected by using HP-PUR-PLUS coatings.
Which colours are available?
Over 190 different RAL colours can be mixed and delivered. If the pool is exposed to high levels of sunlight, we advise against using too dark colours, as there may be large differences in temperature above and below the water in the pool or pond. This could lead to strong differences in stress in the laminate and thus to cracks.
Can I apply a 2K system (resin + hardener) to an existing 1K layer?
It is generally not recommended. 2K coatings are usually much harder than 1K coatings and due to the different properties cracking and chipping can occur. In addition, the solvent contained in 2K lacquer can soften the 1K substrate and following might cause irritation of the surface. With a simple test it can be checked whether the old coating is a 1K or 2K coating: Press a cloth soaked in acetone onto the varnish for at least 1 minute. If the surface remains unchanged, it is a 2K coating. If the paint dissolves or curls after a short time, the substrate is a 1K coating and therefore unsuitable for 2K. Old 1-component coatings must therefore always be removed completely!
Resin and hardener were mixed in the bucket. How long can the system be used?
The so-called pot life is 3 - 5 hours. A very important factor is the ambient temperature. The warmer, the shorter the pot life! After 5 hours at approx. 20°C the mixture reacts and becomes viscous. After that it should not be used anymore!
When the paint is rolled, small bubbles appear. How can these be avoided?
When the recommended rollers (HP-L1032 und HP-L1034) are used, there is usually no blistering. However, blistering may occur when using standard rollers! With a suitable flat brush or surface paint brush the bubbles can be spread directly after rolling the paint. The so-called "equalizing" should be done carefully, otherwise a very uneven surface look is created.
Why does the colour look uneven or irregular during application?
When mixing, it is important to stir each individual component well beforehand and to mix the entire system well afterwards. After mixing, the mixture should be left to stand for approx. 10 minutes so that any bubbles that may have formed can escape.
Does it make sense to apply the paint as thick as possible?
When applying the paint, ensure that the paint is rolled up evenly and not too thick. If the layer is too thick, the entire varnish cannot react with oxygen and therefore cannot harden. This would result in blistering and an uneven colour image. Later, it can even lead to flaking. Tip: It is better to apply twice thinly than once too thick! It should be noted that the first layer should be tack-free before applying the second layer. The second layer must be applied within 24 hours (at 20°C) before the first layer hardens.
I have used much less than specified. Can I return the paint?
All varnishes are mixed on customer order and therefore unfortunately cannot be taken back. In addition, the specified quantity of approx. 150g/m² should be observed. If the paint is applied too thinly, the quality and durability of the coating will be reduced.
The time window for the subsequent coating was exceeded and the substrate has already hardened. Can I still apply the subsequent coating?
A too late application of HP-PUR-PLUS on the first layer or on the primer can lead to orange peel (a disturbance of the colour flow). Furthermore, a chemical bond between the individual layers is no longer guaranteed. Therefore, it would be necessary to sand the surface again after it has dried through and then rub it with acetone to remove dust or grease.
The colour of the coating fades within a short time. What can be the reason?
The HP-PUR-PLUS has a very high resistance to chemicals and UV light. In the pool area, incorrect chlorination can cause the colour to fade. For this reason, the chlorine content and pH value should be measured regularly. The optimum value for chlorine is 0.3 - 0.6 mg/l and pH 7.0 -7.6. If these values are maintained, you can enjoy the colour stability of the PU coating for years.
Technical data 2K PUR Topcoat PLUS | HP-PP
- Colouring: Upon costumer request available in almost all RAL colours
- Mixing rations: 100 parts resin/ 50 parts hardener
- Working time (pot life): ca. 3 - 5 hours (at 20°C)
- Working temperature OPTIMUM: 18 - 25 °C
- Working temperature MINIMUM: 15 °C (air); 70% relative air humidity
- Consumption: ca. 150 g/m²
- Recommended layers: 1 - 2 (dependent on colour tone and application quantity)
Technical Data Sheet (PDF)
Hazard statements
Resin component:Danger
H226 Flammable liquid and vapour.
H312 Harmful in contact with skin.
H315 Causes skin irritation.
H332 Harmful by inhalation.
H335 May cause respiratory irritation.
H336 May cause drowsiness and dizziness.
H411 Toxic to aquatic life with long lasting effects.
H412 Harmful to aquatic life with long lasting effects.
Hardener component:
Warning
H226 Flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways.
H315 Causes skin irritation.
H317 May cause allergic skin reaction.
H319 Causes severe eye irritation.
H331 Toxic by inhalation.
H332 Harmful by inhalation.
H334 May cause allergy, asthma-like symptoms or breathing difficulties if inhaled.
H335 May cause respiratory irritation.
H336 May cause drowsiness and dizziness.
H411 Toxic to aquatic life with long lasting effects.
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