Home Painting Guide

Our home painting guide includes everything that you need to know to paint your house. This will guide you through the entire process of painting from start to finish in a simple and easy way.

Paint Applicators

A good finishing depends on application of right materials with correct equipment by using proper techniques. Hence, paint applicator plays an important role in the whole process.


Hand Rolling

At present hand rolling is done mainly for decorative and maintenance paintings. Roller Coating application is of particular value on broad plain surfaces. The covering material for the roller may be plastic sponge.


  • Techniques

    For large areas it is more convenient to work from a bucket than a tray; a perforated grid is placed inside the bucket, the roller being dipped into the paint and then rolled over the grid to remove surplus material and distribute it evenly. With the tray, a reservoir at an end holds the paint; after charging the roller, it is rolled out on the platform of the tray. In use, the roller is rolled over the surface in criss-cross strokes, working the material out evenly. Paints normally used for brushing can be hand-rolled.


    Advantages

    Although not as quick as spraying, it is usually quicker than brush application, especially on rough surfaces. Another advantage is that, it enables the semi-skilled operator to obtain a reasonable standard of finish and for this reason it is likely to be popular with amateur painters. Roller application on narrow or broken surface does not show any special advantage over brushing.


    Machine Rolling

      Roller coating application is used virtually exclusively for coating metal containers such as tins and also for some drums, kegs and barrels which can be formed from the coated sheet.


      The coating material is fed on the rubber roller through two smaller feed rollers which are of precision ground iron or steel, and which are also adjustable for pressure in order to regulate the film thickness of the coating. The sheets pass between rollers, rubber covered roller and a metal backing roller. After coating, the sheets pass through conveyor belt in the ovens and are stoved.


    Paints suitable for Roller Coating


      They must have


    • Excellent adhesion and flexibility.

    • Excellent opacity

    • Excellent flow and application characteristics

    • Adequate chemical resistance for the end use.

    • A hard marproof film formation quality.

    • Adequate intercoat adhesion between various coats.

    The main features of this process are high product rates, minimum losses, controlled film weight and thickness and economy.