Reference Tables and Property Charts

The reference tables and charts below contain properties and conversions that are commonly used when validating a light-curing process.

Hardness

Durometer Hardness Scales
(Comparison Purposes Only)
OOADFeels Like:
  90Formica®
  80Polycarbonate
 -70 
--58 
--46 
-9039 
-8533 
-8029 
-7525Auto Tire Treads
-7022 
-6519Pencil Eraser
-6016 
-5514 
905012Pink Eraser
884510 
8640- 
8335- 
8030-Rubber Band
7625-Gummy Bear Candy
7020-
6215- 
5510- 
45 - 

Temperature Conversion

To Fahrenheit F° = (9/5 x C°) + 32
To Centigrade C° = (5/9) x (F°-32)
°F°C°F°C°F°C°F°C
-65-5440414563250121
-60-5145715066255124
-55-48501015568260127
-50-46551316071265129
-45-43601616574270132
-40-40651817077275135
-35-37702117579280138
-30-34752418082285141
-25-32802718585290143
-20-29852919088295146
-15-26903219591300149
-10-23953520093305152
-5-211003820596310154
0-181054121099315157
5-1511043215102320160
10-1211546220104325163
15-912049225107330166
20-712552230110335168
25-413054235113340171
30-113557240116345174
35214060245118350177

Units Conversion

Length1 meter = 100 centimeters = 1,000 millimeters = 106 microns = 1.094 yards = 3.281 feet =
39.37 inches
Area1 m2 = 10,000 cm2 = 10.76 ft2 = 1,550 in2
Volume1 liter = 1,000 mL = 1,000 cm3 = 0.001 m3 = 0.2642 gal = 1.0567 qt = 2.113 pt = 33.81 fluid oz =
0.3531 ft3 = 61.02 in3
1 gallon = 3.785 liters
Weight1 kilogram = 1,000 grams = 1,000,000 milligrams = 35.27 ounces = 2.205 pounds
Speed1 meter/min = 0.01667 meters/sec = 3.281 feet/min = 0.05467 feet/sec = 38.62 inches/min =
0.6560 inches/sec
Heat Transfer & Thermal Conductivity1 Watt = 3.412 BTU/hr
1 W/m2°K = 0.5778 BTU/(Hr • Ft • °F)
Force1 lb force = 4.448 Newtons
Pressure1,000 PSI = 6.895 MPa = 70.307 kg/cm2

For a more complete list of unit conversions, visit www.onlineconversion.com.

Estimating Material Usage

Thickness of the Bond Line Gap or CoatingTheoretical Area Covered by
1 Liter of Adhesive or Coating
0.002" (51 μm)30,500 in2 (212 ft2) (19.7 m2)
0.005" (127 μm)12,200 in2 (84.7 ft2) (7.88 m2)
0.010" (254 μm)6,100 in2 (42.4 ft2) (3.94 m2)
0.015" (381 μm)4,070 in2 (28.3 ft2) (2.63 m2)
Bead SizeTheoretical Usage
(Length per Liter)
1/32" (0.79 mm)66,300 ft (20,200 m)
1/16" (1.6 mm)16,600 ft (5,100 m)
3/32" (2.4 mm)7,400 ft (2,300 m)
1/8" (3.2 mm)4,100 ft (1,200 m)
3/16" (4.8 mm)1,900 ft (580 m)
1/4" (6.4 mm)1,000 ft (300 m)
Common Calculations
CircumferenceCircle=diameter x π
AreaRectangle=length x width
Circle=radius2 x π
Cylindrical Surface=diameter x length x π
VolumeRectangular Solid=length x width x height
Sphere=4/3 x radius3 x π
Cylinder=radius2 x π x length

π is approximately 3.14159.

Viscosity

Approximate Viscosity in Centipoise (cP) and Mili-Pascals-Seconds (mPa•s) at Room TemperatureFluid Comparison
1Water
80Olive Oil
200Motor Oil (SAE 30)
3,000Honey
8,000Molasses
65,000Vaseline
100,000Sour Cream
150,000 - 250,000Peanut Butter

Intensity Conversion

Energy (mJ/cm2) = Intensity (mW/cm2) x Time (seconds)
Intensity (mW/cm2) = Energy (mJ/cm2) / Time (seconds)
1,000 mJ/cm2 = 1 Joule/cm2
1,000 mW/cm2 = 1 Watt/cm2
Intensity (uW/cm2) = Energy (uJ/cm2) / Time (seconds)

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