Polyurethane/Epoxy Resin for 3D Sticker

Ensure proper ventilation (install exhaust systems or keep windows/doors open).

Maintain a 3-meter distance from ignition sources (welding, sparks, open flames).

Use chemical-resistant mats and equip the area with fire extinguishers (dry powder/CO₂).

Immediate action: Rinse eyes continuously with an eyewash station or clean water for 15 minutes, holding eyelids open.

Medical attention: Visit an ophthalmologist even if symptoms subside (bring the product’s MSDS sheet).

Avoid: Rubbing eyes or using chemical neutralizers.

Initial response:

• Wipe off excess resin with gloves and clean paper/cloth.

• Clean residue using a propylene glycol methyl ether-based cleaner.

Deep cleaning:

• Wash thoroughly with warm soapy water for 2+ minutes.

• Use olive oil to soften stubborn residue before rinsing.

Medical care: Apply hydrocortisone cream for redness/burning and seek medical help if irritation persists.

Material validation: Verify adhesion to substrates (e.g., PVC/metal) via crosshatch adhesion test (≥4B rating).

Process calibration: Adjust mixing ratios and curing conditions (temperature tolerance: ±2°C).

Risk mitigation: Prevent batch defects (e.g., surface whitening) due to humidity >70%.

Sealing protocol:

• Purge containers with nitrogen gas and seal with aluminum foil + PE film.

• Use opened resin within 72 hours.

Quality checks:

• Cloudy/Crystallized Part A: Reheat to 40°C (104°F) and stir.

• Overly viscous Part B: Discard immediately.

Environment:

• Temperature: 15-25°C (59-77°F) with <±3°C daily fluctuation.

• Humidity: <60% RH (use desiccant cabinets).

• Light protection: Store in original amber containers (no transparent packaging).

Handling:

• Stack containers >15 cm (6 in) above ground and >50 cm (20 in) from walls.

• Use shock-absorbing pads for multi-layer storage.

Uncured waste:

• Classify as HW13 hazardous waste (organic solvents) and store in leak-proof containers.

• Dispose via licensed incineration facilities.

Cured waste:

• Crush into non-hazardous construction filler materials (requires local environmental permits).

• Never landfill or pour into drains.