Finishes in Materials Higher Product Design Finishes for

Finishes in Materials Higher Product Design

Finishes for Wood � Basic preparation (sanding etc. . ) � Staining � Oil � Wax polish � French polish � Synthetic resins � Paint

Finishes in Metal � Painting � Plastic coating(dip coating) � Polishing � Lacquering � Anodising � Enamelling � Etching � Electroplating

Finishes for Plastic � Self finishing � Wet and Dry � Polish � Laminating

Wood Finishes Appearance Protection Durability Creates shine Short Term Shellac Some yellow or Fair against orange tint, water, good on Durable depending on solvents except grade used alcohol Good protection Conversion Transparent, varnish good gloss Excellent protection against many substances Yellow warm glow, pops Linseed oil Very little grain 1, darkens with age Tung oil Alkyd varnish Warm glow, pops grain 1, Very little lighter than linseed Not as transparent as Good lacquer, protection yellowish/orang Ease of Application Reversibility Needs frequent Safe when solvents in easy, needs reapplication paste wax evaporate sanding Wax Nitrocellulo Transparent, se lacquer good gloss Safety Can easily be removed with solvents Rubbing Qualities Needs to be buffed French polishing Completely difficult reversible using Excellent technique to alcohol master. Uses toxic solvents, Requires spray including toluene. equipment. Completely Hard and Excellent hard Breathing protection is Brush-on reversible using durable finish needed, especially if products also lacquer thinner sprayed available Requires spray Uses toxic solvents, equipment. Hard and including toluene. Excellent hard Used in Difficult to reverse Breathing protection is durable finish professional needed shops only Easy, apply with Fairly durable, rags and wipe Relatively safe, depending on Needs sanding out off. Takes None metallic driers are number of as oil is absorbed poisonous relatively long coats time to dry Fairly durable, Easy, apply with Relatively safe, depending on rags and wipe Needs sanding out metallic driers are None number of off. Faster to dry as oil is absorbed poisonous coats than linseed oil Brush or spray. Relatively safe, uses Brushing needs Can be stripped Durable good technique using paint Fair petroleum based solvents to avoid bubbles removers Safe when solvent evaporates, used as food and pill coating

Finishes in wood (contd) Transparent, Polyurethan many coats e varnish can look like plastic Excellent protection against many substances, tough finish Water-based polyurethan Transparent e Good protection. . new Durable after Safer than oil-based, er products approx. 30 day fewer volatile organic (2009) also UV curing period compounds (VOCs) stable Durable after Relatively safe, uses approx. 30 day petroleum based curing period solvents Fairly durable, depending on Similar to oils number of unless many Low, but more coats (archaic Relatively safe, uses Oil-varnish coats applied, product, little petroleum based than pure oil mixes then takes on finishes used with the solvents characteristics availability of of varnishes modern finishes) Application requires some level of skill Can be stripped using paint removers Brush or spray. Fast drying Can be stripped demands care in using paint application removers techniques Bad, coats do not meld leading to white rings if rubbing out cuts through coat Easy, apply with None unless rags and wipe Needs sanding out many coats off. Faster to dry as oil is absorbed applied than linseed oil