Blender 3D: Noob to Pro/Every Material Known to Man/Rubber

Rubber

Method 1

This method is for a general, computer-performance-oriented rubber material.
Color

Col: (Adjust as needed)
- R - 0.15
- G - 0.14
- B - 0.12

Spec: (Change as needed)
- R - 1
- G - 1
- B - 1

Shaders

Diffuse Shader:(Minnaert)
- Ref - 0.7
- Dark - 0.6

Specular Shader:(Blinn)
- Spec - 1.5
- Hard - 10
- Refr - 2

Some people think it looks TOO smooth. If you feel that way, add a very light texture:
Texture
Tex Type - Stucci

StucciType - Wall In
NoiseType - Hard Noise
NoiseSize - 0.05
Turbulance - 3F
Noise Basis - Voronoi F1

Map Input

Coordinates - Orco
SurfaceType - Cube

Map To

MapType - Nor
- NorSlider - 0.3

Method 2, w/SSS

This method is a better quality and more realistic Rubber material, but works best using SubSurface Scattering, so it may affect the time of your Render.

Color

Col: (Adjust as needed)
- R - 0.15
- G - 0.14
- B - 0.12

Spec: (Change as needed)
- R - 1
- G - 1
- B - 1

Shaders

Diffuse Shader:(Lambert)
- Ref - 0.8

Specular Shader:(CookTorr)
- Spec - 0.97
- Hard - 5

SSS

Scale - 1
RadiusR - 8.5
RadiusG - 5.5
RadiusB - 4
Hex - DFDFDF
- Col - 1
- Tex - 0
- Front - 1
- Back - 1
IOR - 1.8