1. Product Overview
DIABOND NO.1600 (DIABOND NO.1600) is a product specifically designed for Metal and vulcanized rubber A series of high-performance chloroprene rubber (Chloroprene Rubber) solvent-based industrial strong adhesives developed for the bonding of difficult heterogeneous materials.
This product adopts a single-component design and does not require pre-adjusting curing agents. It has the characteristics of fast initial bond formation and high shear and peel strength after complete curing.After curing, the adhesive film has excellent water resistance, aging resistance and harsh temperature environment adaptability (heat resistance to 80°C, cold resistance to -20°C, softening point up to 200°C and above), and is widely used in the structural permanent bonding of precision electroacoustic speakers, automobile and motorcycle ship parts, industrial machinery and decorative composite materials.
2. Core performance and technical advantages
Fast initial adhesion, excellent final adhesion strength:
After the coating is left to dry, it immediately produces high initial adhesion. As the solvent evaporates and cross-links, the normal peeling strength can reach up to 96 hours.98 N/25mm, the shear strength reaches 2.7 MPa.
Excellent aging resistance and physical gain:
After long-term aging resistance testing, the shear strength of the metal/plate has risen to 2.0 ~ 3.1 MPa, the film does not become brittle, powdery or degraded.
Extremely low temperature and temperature resistance adaptability:
exist -20°C extremely low temperature Under working conditions, the shear strength is as high as 2.8 ~ 3.5 MPa, stripping force 70 ~ 108 N/25mm, completely preventing the adhesive layer from cracking and falling off in severe cold environments; at the same time, the softening temperature reaches Above 200°C, ensuring structural safety under thermal stress.
Water resistance and sealing reliability:
After 48 hours of continuous water immersion test, the peeling force remained stable.58 ~ 75 N/25mm, effectively resist erosion in humid environments.
High versatility for bonding heterogeneous materials:
It has strong bonding and adhesion to steel plates, chrome alloy plates, aluminum alloys, natural rubber, wood composite panels, resin decorative panels, cotton canvas, leather and stone.
One-component easy construction:
Moderate viscosity (8000~18000 mPa·s), good filament breakage, good coating fluidity, easy to apply by hand or with equipment.
3. Physical and chemical properties and technical indicators
| Test items (Item) | Technical indicators (Properties) | Test conditions/specifications |
| Main chemical components | Chloroprene Rubber | High polymer synthetic rubber system |
| Appearance | Yellow brown viscous liquid | Visual inspection |
| Solid Content | 33.5 ± 1.5% | Oven method residue determination |
| Viscosity | 8, 000 - 18, 000 mPa·s | at 20°C, rotational viscometer |
| Tack-free | 2 to 4 minutes | at 20°C |
| Adhesion retention time (Open Time) | 10-20 minutes | at 20°C (generous adaptable operating window) |
| Shelf Life | 8 months | Store sealed and protected from light at 20°C |
| flash point/fire point | Flash point -17°C / Autoignition point 260°C | Closed cup flash point (flammable liquid) |
| Softening Point | Above 200 °C | Continuous testing from day 1 to day 5 (JIS K 6833) |
| Dangerous goods classification | Category 4 Petroleum Category 1 (non-water-soluble liquid) | Hazard level II |
4. Rigorous testing and actual measurement of bonding strength
Comply with standards: JIS K 6854 (peel strength test), JIS K 6850 (shear strength test)
(Substrate material symbol description: Fe-steel plate, NR-natural rubber, Cr-chromium alloy steel plate, Can-cotton canvas, Al-aluminum plate, W-synthetic wood board, MF-resin decorative board)
| Curing test conditions and cycles | Peel strength: steel plate/natural rubber (Fe/NR) | Peel Strength: Chrome Alloy/Cotton Canvas (Cr/Can) | Shear Strength: Steel Plate/Aluminum Plate (Fe/AL) | Shear strength: synthetic board/resin decorative board (W/MF) |
| Normal curing 1 hour | 22 N/25mm | 20 N/25mm | 0.6 MPa | 0.6 MPa |
| Normal curing 24 hours | 67 N/25mm | 64 N/25mm | 1.4 MPa | 2.1 MPa |
| Normal curing 48 hours | 73 N/25mm | 82 N/25mm | 1.6 MPa | 2.4 MPa |
| Normal cure 96 hours (final strength) | 76 N/25mm | 98 N/25mm | 1.8 MPa | 2.7 MPa |
| Aging resistance test | 68 N/25mm | 82 N/25mm | 2.0 MPa | 3.1 MPa |
| Heat resistance test (80 °C) | 22 N/25mm | 32 N/25mm | 0.5 MPa | 0.5 MPa |
| Cold resistance test (-20 °C extremely low temperature) | 70 N/25mm | 108 N/25mm | 2.8 MPa | 3.5 MPa |
| Water resistance test (water immersion for 48 hours) | 58 N/25mm | 75 N/25mm | 1.2 MPa | 1.2 MPa |
5. Typical application areas
Speaker and sound system assembly: Voice coil, centering support piece (elastic wave), sound cone paper cone, dust cap, micro speaker frame and sealed shock-absorbing parts are bonded.
Electrical and precision component manufacturing: Micromotor insulation gasket fixation, electroacoustic component shockproof sealing bonding.
Automobile, motorcycle and ship assembly: Fastening and bonding of metal car bodies/frames to sealing rubber strips, shock absorbing pads, and interior composite panels.
Furniture and Decoration Engineering: Aging-resistant veneer composite of fireproof board, resin decorative board (MF), high-density synthetic board and metal frame.
6. Standard operating methods and safety protection (Operation & Safety)
Surface preparation: Remove moisture, oil, dust and release agent from the surface of the adherend (it is recommended to use solvent to wipe, degrease and dry).
Double-sided coating: Use a brush or adhesive knife to apply paint evenly on both sides of the adhesive surface.The recommended coating amount on one side is 150 ~ 250 g/m² (the total coating amount on both sides is 300 ~ 500 g/m²).
Drying and fitting: Leave at room temperature 5 to 15 minutes, when the solvent has evaporated to a moderate degree and is slightly sticky to the touch but not stringy, immediately fit it accurately and apply heavy pressure.
Safety regulations: Flash point is -17°C, fireworks are strictly prohibited; The workplace must be equipped with powerful mechanical exhaust devices; Operators should wear organic solvent gas masks and protective gloves; Utensils can be cleaned with toluene; Storage temperature is controlled at 5°C - 35°C.
