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Application Guide Hardtop One: Application Data Spray Application

This document provides application guidelines for Hardtop One spray paint. It recommends an airless sprayer with a minimum pump ratio of 32:1 and pressure of 150 bar/2100 psi. The nozzle size should be 13-19 with an output of 0.7-1.5 L/min. It can also be applied by air spray, brush, or roller. When brushing or rolling, multiple coats may be needed to achieve the recommended dry film thickness of 60-100 μm.

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40 views1 page

Application Guide Hardtop One: Application Data Spray Application

This document provides application guidelines for Hardtop One spray paint. It recommends an airless sprayer with a minimum pump ratio of 32:1 and pressure of 150 bar/2100 psi. The nozzle size should be 13-19 with an output of 0.7-1.5 L/min. It can also be applied by air spray, brush, or roller. When brushing or rolling, multiple coats may be needed to achieve the recommended dry film thickness of 60-100 μm.

Uploaded by

TamerTamer
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Application Guide

Hardtop One

Application data

Spray application

Airless Spray Equipment

Pump ratio (minimum) : 32:1


Pressure at nozzle (minimum) : 150 bar/2100 psi
Nozzle tip (inch/1000) : 13-19
Nozzle output (litres/minute) : 0.7-1.5
Filters (mesh) : 70-100

Several factors influence, and need to be observed to maintain the recommended pressure at the nozzle. Among
factors causing pressure drop are:
- extended hoses or hose bundles
- extended hose whip-end line
- small internal diameter hoses
- high paint viscosity
- large spray nozzle size
- inadequate air capacity from compressor
- incorrect or clogged filters

Air Spray Equipment


Pressure at nozzle (minimum) : HVLP: 2.1 bar/30 psi / Pressure pot: 2.1 bar/30 psi
Nozzle tip: HVLP: 11-19 (inch/1000) / Pressure pot: 1.1-1.9 (mm)

Other application tools

Brush application

Suitable for application with brush. Use a high quality, clean natural or synthetic bristle brush with proper shape
and size. When used as primer coat, a stiff brush is recommended to secure proper substrate wetting. When
used as a finish coat a more long haired brush is recommended to improve flow and appearance. To achieve
specified dry film thickness it may be necessary to apply multiple coats.

Roller application

Suitable for application with roller. Use a properly sized, high quality, clean roller with natural or synthetic cover.
Pre-wash new rollers in proper thinner to remove loose fibres. Roller is not recommended for application of
primer coat. Addition of small volumes (5-10 %) of thinner will improve appearance when used as finish coat.
To achieve specified dry film thickness it may be necessary to apply multiple coats.

Film thickness per coat


Typical recommended specification range

Dry film thickness 60 - 100 μm


Wet film thickness 80 - 130 μm
Theoretical spreading rate 12 - 7.2 m²/l

Bright colours may need film thickness in the high end of the recommended specification range to achieve
opacity.

This product can be applied up to 50 % higher than maximum specified film thickness without loss of technical
properties.

Date of issue: 31 August 2020 Page: 3/7

This Application Guide supersedes those previously issued.


The Application Guide (AG) must be read in conjunction with the relevant specification, Technical Data Sheet (TDS) and Safety
Data Sheet (SDS) for all the products used as part of the coating system.
For your nearest local Jotun office, please visit our website at www.jotun.com.

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