PUR Top Coat, Spar Varnish *MATT* | HP-PURMA

Technical Data 2K PUR Topcoat matt | HP-PURMA

The combination of HP-PUR (glossy) and HP-PURMA (matt) can be used to change the gloss level. Furthermore, the gloss level depends on the color, the application and drying process.

The following must be observed:

• Higher film thicknesses achieve higher gloss levels, whereas lower film thicknesses achieve lower gloss levels.
• Oven drying makes it possible to achieve higher gloss levels.
• Color differences of any formulation remain within tolerance limits for matt and gloss shades

 

• Colouring: Upon costumer request available in almost all RAL colours
• 2K polyurethane system
• Mixing rations (weight): 100 parts resin/ 50 parts hardener, if necessary 25-30 parts IMC-X Thinner
• Working time (pot life): approx. 4 hours (at 20°C)
• Working temperature OPTIMUM: 18 - 25 °C
• Working temperature MINIMUM: 15 °C (air); 70% relative air humidity

Drying times

dust-free (at 20°C):	20 - 30 minutes
non-sticky (at 20°C):	4 - 5 hours
complete drying process (at 20°C):	48 hours

Oven drying at 60°C

non-sticky (let it air for 30 minutes before heating)	approx. 30 minutes
fully loadable after	6-7 days (at 20°C)

  

Hazard statements

Hardener:
H226 Flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways.
H315 Causes skin irritation.
H317 May cause an allergic skin reaction.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
H335 May cause respiratory irritation.
H336 May cause drowsiness or dizziness.
H373 May cause damage to organs through prolonged or repeated exposure.



Resin:
H226 Flammable liquid and vapour.
H315 + H319 Causes skin irritation and serious eye irritation.
H335 May cause respiratory irritation.
H336 May cause drowsiness or dizziness.
H373 May cause damage to organs through prolonged or repeated exposure.
H411 Toxic to aquatic life with long lasting effects.

Frequently asked questions

Why HP-PURMA (Polyurethane)?

An 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-PURMA coatings.

Which colours are available?

Over 190 different RAL colours can be mixed and delivered.

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 and 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 surface. 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 exeeded and the substrate has already hardened. Can I still apply the subsequent coating?