Name of different types of paint and their uses.
To Prevent from Rusting and also to give to give it a beautiful look. Types: Alkyd, Bituminous, Chrorinated Rubber, Efory. Antifouling, Boot toppling
MEK Painting and Surface Preparation
Oral questions on paints, primers, tools and surface preparation. 10 questions with answers, taken from the supplied MEK oral notes. Use the search box, hide answers with Revision mode and test yourself.
What is the purpose of primer paint? Name at least two types of primer paint?
It adheres to the surface, prevents corrosion and also provides a good base for under coats.
Red Oxide
Zinc chromate
Red lead
Name of Tools used for surface preparation?
Needle gun
Pneumatic wire brush
Disc grinder
Chipping hammer
How will you prepare a steel surface for painting?
Wear proper PPE with safety goggles, face mask, hand gloves.
Remove all loose metal chips and rust with chipping chipping tools and wire brush.
Blow through all dust and rust
Clean oil and grease from the surface.
Wash the surface with clean fresh water and make the surface dry.
Now the surface is ready
Name various painting defects and their reasons.
Sagging
Blistining
Holiday
Peeling
Cracking
Composition oF Paint & Benefitts.
Composition -Pigment, vehicle, drier, primer Benefitts- Prevent from corrosion, direct contact with atmosphere,less repair
how to prepair surface for painting.
After chipping, removing rust and scale clean and wipeoff dirt, graese and oil by cotton cloth.
Types Of Paint
Alkyd paint- Super Stucter, internal deck,bulkheads Bituminous paint- Chain locker Chlorinated rubber Paint- Decks, ship side Epoxy Paint- Decks ,Ship Side(very costly and Long lasting)-binder and hardener Polyurethane Paints- suitable for tanks on chemical tanker Anti fouling Paints- Ships bottom (before dry dock flooding)
Chipping and painting Equipmets.
HTV - hand Transmited Vibrator Needle gun- use for removing rust using multiple needle penumatic wire brush Electrical chipping machine Brushes- Flat,Angled,Stencil,Roller Spray Gun-external mix type, internal mix type Respirators
Type Of deffects in Paint.
Holidays- small patches left during painting sagging- paint flow down cracking- top coat fractures peeling- poor adhesion of paint blistering- small blisters under paint surface slow drying- due to grease or dirty surface crawling- due to oily or grase surface
Other oral topics
MEK OralMEK Oral Questions and AnswersMEK Engineering FundamentalsMEK Machinery QuestionsMEK Safety QuestionsMEK Oral Revision Guide