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Finishes

Gloss/ Sheen/ Matt/ Semi-gloss/ Vinyl silk/ Textured.

Constituents and Admixtures [2, 4, 5, 7]

Binder/ Vehicle / Medium / Film former (known as resin component)

The purpose is to solidify liquid coating into dry film, to blind the pigment particles, to provide gloss to the coating, to give elasticity, to provide water, chemical and abrasion resistant, to hold the pigment in suspension.

Solvent / Thinner

(e.g: alcohol, hydrocarbon, etc)

Makes the coating liquid enough to be easily and evenly applied by any method. It evaporates completely once the coating has been applied.

Pigment

(e.g: Titanium Dioxide, Calcium Carbonate, Talc Pigments, etc)

Besides providing colour, pigments act as surface protector and to provide opacity or covering paver. To provide opacity or covering power. To aid the film-former in protecting the surface.

Drier, hardener, or catalyst

The main purpose is to speed up drying process, which includes converting the liquid coating into solid state. It helps epoxy and polyurethane resins into hard films.

Plasticiser

To prevent the film of some coatings being too brittle.

Stabiliser

Required by some coatings to ensure that the complex film-former remains intact.

Anti-skinning agent

Added to some oil-based paints to prevent skinning in the tin.

Extender

It provides ease of paint, provide a key in undercoat films for finishing paints to grip and to lower the cost by adding bulk to the paint system.

Thixotropic agent

Gives a jelly-like structure to paints, provides anti-sag and high build properties.

Colors

Colors come from either organic or inorganic pigments.

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Solvents for the Paints

Water based/ Solvent based.

Resin Component

The selection is based on the type of substrate.
I.e. Epoxy, Alkyd, Acrylic, Polyurethane, Fluorocarbon, Silicone, etc.

Painting System [1]

sources from: Nippon Paint Pte Ltd, BCA; Good Practice Guide.

Primer

Used for wood and metal substrate. The function of the primer is to grip the substrate, to provide protection against corrosion/ dampness, and to provide a good key for remaining coats.

Sealer

Used for cement based substrate. To resist alkali attack from cement based material, to improve adhesion, to seal problematic surfaces (e.g. resinous wood), to stabilize loose surface particles, and to reduce porosity of receiving substrate as to prevent undue absorption of resin from subsequent coats of paints.

Undercoat

To provide opacity thus contains large quantities of pigments, to level out minor irregularities, provides uniform texture, and to improve inter-coating adhesion.

Topcoat/ finishing coat

To provide durable layer (protect against UV rays, humidity, chemical, corrosion, algae, abrasion, etc), decorative purposes (color, texture, gloss level), and to provide special requirement includes fire resistant, anti-condensation, etc.

Texture

To give 3D esthetical appearance and decorative purposes.

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Drying Time

Touch dry / Hard dry (e.g. 15 min-7 hr)

Resistance

Ultra-violet/ Chemical/ Abrasion/ Fungus/ Algae/ Dirt/ Bacteria/ Alkali/ Wet scrub

Outdoor Durability

Gloss retention/ Colour fastness/ Ultra-violet

Storage Stability

Settling tendency/ Viscosity stability

Thermal Conductivity

± 0.23 W/m K [7]

Water Vapour Transmission

100-200 g/m² . 24 hrs

Water Absorption

± 0.12 kg/m².h 0.5

Density

± 1.4-1.50 g/ cm³

100% Solid Polymer-based Coating

Solvent free. Usually used as basement carpark/ warehouse floor finishes.

epoxy_coat flooring1d6

Recommended application:

Human traffic water based epoxy coating
Light to heavy traffic (internal) 100% solid epoxy
Exposed to weathering 100% solid PU

Source: Nippon Paint Pte Ltd

Addition of aggregate is prefered to achieve the anti slip performance.

Thickness

Recommended application for basement flooring: 20 micron (8 mil) wet/ dry

Physical Properties

Abrasion resistance ASTM D4060 70 mgm per 1000 cycles
Impact resistance ASTM D2974 3.95 J (35 in/ lbs)
Adhesion ASTM D4541 35 kg/cm² (500 psi)
Scratch resistance BS 3900 Part E2 No failure at 2.5 kg load

Courtesy of Nippon Paint Pte Ltd