RuiDa's Urea Molding Powder are based on urea formaldehyde resin and takes cellulose, minerals as the filling, together with both lubricant, hardener and pigment, etc.
UF1G-1238: granule form, compression grade; color: white
Product Properties
1. After molding, the surface should be flat, shinny and smooth, no bubbles or crack, color and foreign material achieves standard.
2. No black spot, stable pressing properties
3. Color difference: Delta E<0.6
Applications
Electrical grade, mostly used for molding electrical appliances, such as dash board, switch, socket, plug, wiring board etc.
Appearance Cleanliness
Item | A class | B class |
Black spot | No visible spot | ф0.4mm≤3 |
Impurity | ||
Dark spot | ф0.4mm≤2 | ф0.6mm≤2 |
White spot | 0 | ф0.4mm≤2 |
Transparent spot | 0 | ф1.0mm≤2 |
Color Difference
Color standard | L | a | b |
87.25 | 0.45 | -0.25 | |
Acceptance range | 0~0.6 | ±0.2 | ±0.3 |
△E：≤0.6 | |||
Other outgoing quality inspection items
Inspect items | A class | B class |
Volatile % | ≤4.0% | |
Fluidity mm | 96~97mm | 95~98mm |
Curing time s | 53~55s | |
Production Specification
Number | Test Items | Index | Test Result |
1 | Fluidity, mm | 90-105 | 96 |
2 | Volatile Content % ≤ | 5.00 | 3.8 |
3 | Exterior | Qualified | |
4 | Boiling Water-proof | Qualified | |
5 | Flexural Strength, Mpa ≥ | 80 | 87 |
6 | Impact Strength, KJ/㎡ ≥ | 1.7 | 1.89 |
7 | Temperature of hot distortion, ℃ ≥ | 115 | 125 |
8 | Water absorption(Cold water) mg ≤ | 100 | 32 |
9 | Molding Shrinkage, % | 0.5-1.0 | 0.65 |
10 | Dielectric resistance after 24h in water, MΩ ≥ | 104 | 3.8 x 105 |
11 | Dielectric Strength, MV/m ≥ | 7.0 | 8.0 |
Company Environment
Our Advantage
1. More than 36 years experience in this field.
2. Specialized in producing electrical grade UMC, for granule compression or injection machine.
3. Flexible payment terms, T/T/ L/C D/P, all is available.
4. Completely closed production, no black spots.
