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Selsil Ninja MDF is a two-component cyanoacrylate adhesive system engineered for high-strength bonding of vertical timber and MDF assemblies. This non-sag formula utilizes a solvent-based activator to achieve a permanent bond in under 10 seconds, effectively preventing alignment failure in miter joints and crown moulding.
By eliminating the need for mechanical fasteners that risk splitting delicate MDF surfaces, it ensures clean, professional finishes in custom cabinetry and high-speed shop production.
Frequently Asked Questions
How fast does Selsil Ninja MDF cure after application?
Selsil Ninja MDF cures within 3 to 5 seconds when both components are correctly applied. The aerosol activator speeds up polymerisation, making it ideal for jobs requiring instant bonding—especially on vertical or delicate joinery surfaces.
Can I use Selsil Ninja MDF on non-absorbent surfaces like PVC or laminate?
Yes, Selsil Ninja MDF performs well on both absorbent and non-absorbent substrates such as PVC, laminate, and lacquered surfaces. Ensure the surface is clean and dry, and always apply the activator to one side before bonding.
Is Selsil Ninja MDF suitable for vertical bonding applications?
Absolutely. The non-sag adhesive formulation is ideal for vertical or overhead bonds. It grips quickly and won’t run, helping installers position components accurately without bracing or slipping during cure time.
What is the shelf life and best storage temperature for Selsil Ninja MDF?
Shelf life is 12 months when stored between +5°C and +25°C in a cool, dry environment. Avoid freezing, direct sunlight, or storage above 50°C. Always keep containers sealed when not in use.
Do I need to clamp the parts after using Selsil Ninja MDF?
No clamping is usually required. The bond activates within seconds under light hand pressure (2–3 seconds). For heavier pieces, brief support may help maintain alignment, but the adhesive itself cures extremely fast.
What PPE should I wear when applying Selsil Ninja MDF?
Always wear gloves and eye protection. Use the product in well-ventilated areas and avoid direct contact with skin or eyes. Do not inhale vapour, and never spray the activator onto hot surfaces or near open flame.
Applications & Benefits
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Joining MDF panels in cabinetry | Fast bonding eliminates the need for clamping or screws | Cabinetmakers, Joiners |
| Fixing skirting boards and architraves | Non-sag adhesive allows accurate vertical positioning | Builders, Carpenters |
| Edge repairs on chipped panels | Clean, permanent repairs with no swelling or expansion | Remedial Specialists, Shopfitters |
| Bonding timber trims to PVC or lacquered surfaces | Strong bond to non-absorbent materials using included activator | Installers, Fitout Contractors |
| On-site joinery assembly or adjustment | Instant adhesion with no waiting for curing—saves time on site | All Trades |
Applying Selsil Ninja MDF: Enhanced Protocols & Best Practices
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1. Prepare the Surfaces
Ensure both bonding surfaces are clean, dry, and free from dust, oil, or loose particles. This step is essential to achieve optimal bonding strength.
Raw Timber / MDF
Brush or blow off dust, then wipe with a dry cloth. Light sanding is optional but may improve grip.
Glossy or Painted Surfaces
Avoid solvents. Clean using a dry lint-free cloth. Ensure no peeling coatings are present.
Timing: Immediately before bondingPro Tip: Avoid touching the surface with bare hands after cleaning—finger oils can reduce adhesion. -
2. Apply the Activator
Spray the Selsil Activator onto one of the surfaces to be joined. Use a light, even coat to accelerate the adhesive's curing process.
Aerosol Application
Hold the can upright ~15cm from the surface and apply a quick, uniform spray.
Timing: Allow 5–10 seconds for solvent evaporationPro Tip: Avoid over-saturating the surface—excess activator may delay bonding or leave residue. -
3. Apply the Adhesive
Apply a small amount of the cyanoacrylate adhesive to the opposite surface (not the one with activator). A thin film is sufficient for strong bonding.
Precision Tip
Use the applicator nozzle to guide the bead along the join line. Avoid pooling or excess adhesive.
Timing: Apply immediately after activator flashes offPro Tip: If adhesive overflows when pressing parts, do not wipe—let it cure and trim after. -
4. Assemble and Hold
Bring both surfaces together with accurate alignment. Press firmly for 2–3 seconds to activate the bond. No clamping is typically needed.
Manual Pressure
Apply steady hand pressure on the joint line. Keep stable and aligned for 3–5 seconds.
Timing: 3–5 seconds to achieve full setPro Tip: Do a dry fit first—repositioning is nearly impossible once contact is made.
Limitations & Safety
Product Limitations
Not suitable for polyethylene, polypropylene, or PTFE substrates. Use a specialty plastic adhesive for those materials.
Try: Selsil Plastic Fix
Avoid use on surfaces exposed to continuous high temperatures (>80°C). Heat may degrade bond strength.
Try: Selsil High Temp Silicone
Bond is permanent and cannot be repositioned after assembly. Dry fit recommended before final adhesion.
Excess adhesive may cause blooming (whitening) on dark surfaces if ventilation is poor.
Not recommended for continuous wet environments or immersion.
Try: Selsil Marine Sealant
Safety & Handling Requirements
Personal Protective Equipment
Wear nitrile gloves and safety glasses when applying. Avoid direct skin and eye contact. Long sleeves are recommended to prevent accidental spills on skin.
Ventilation Requirements
Use in well-ventilated areas. Do not inhale vapour. Avoid confined spaces or enclosed environments without adequate airflow.
Fire & Handling Precautions
Keep away from heat sources, sparks, and open flames. The aerosol activator is flammable—do not puncture or incinerate. Store in a cool, dry place away from sunlight and temperatures above 50°C.
Emergency First Aid
Eyes:
Flush with lukewarm water for 15 minutes. Do not rub. Seek immediate medical attention.
Skin:
Do not forcibly pull bonded skin apart. Soak in warm soapy water and gently peel. Use acetone if needed. Seek medical help if irritation persists.
Inhaled:
Move to fresh air immediately. Seek medical attention if breathing becomes difficult or symptoms persist.
Swallowed:
Do NOT induce vomiting. Rinse mouth thoroughly and seek urgent medical assistance.
Seek medical attention immediately in all cases of serious exposure.
Selsil Ninja MDF Application Guide
MDF (Medium Density Fibreboard)
Surface Preparation
Ensure surface is dry, dust-free, and free from loose fibres. Light sanding may improve contact. Clean with a dry cloth prior to bonding.
Primer Requirements
No primer typically required
Selsil Ninja MDF adheres strongly to raw MDF without primers.
Particleboard
Surface Preparation
Brush off all loose particles. Clean thoroughly and ensure surface is dry. Avoid oily residues.
Primer Requirements
No primer typically required
Good adhesion on untreated particleboard when dry and clean.
Lacquered or Painted Timber
Surface Preparation
Wipe with a clean dry cloth. Avoid solvents. Ensure surface is smooth and free from flaking paint or polish.
Primer Requirements
Primer recommended for optimal adhesion
Use Selsil Activator for improved curing on glossy or coated surfaces.
Selsil Activator (included)PVC Trim & Plastics
Surface Preparation
Wipe surface dry and ensure it is clean of any oils or manufacturing residues. Do not abrade unless required for mechanical keying.
Primer Requirements
Primer recommended for optimal adhesion
Use activator to improve bond on non-absorbent plastic surfaces.
Selsil ActivatorTimber (Raw or Planed)
Surface Preparation
Clean off all sawdust and debris. Ensure surfaces are dry and well-fitting. Sanding is optional but may improve bond surface area.
Primer Requirements
No primer typically required
Selsil Ninja MDF bonds strongly to most untreated woods.
| Document | Download |
|---|---|
| Selsil Ninja MDF Technical Data Sheet | |
| Selsil Ninja MDF Safety Data Sheet |
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