Advanced Fabrication

Try this with wood!

 

Use your imagination when designing with InfiniTree.

InfiniTree R&D personnel share advanced fabrication techniques with our channel partners.

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Technical Data

InfiniTree has been tested in the lab and PROVEN in the FIELD.

Mechanical Properties Results Test Method
Tensile strengh MPa 18.3 BS 2782 (Method 322)
Tensile strengh MPa 30.0 ISO 527
Elongation at break % 2.5 ISO 527
Modulus of Rupture MPa 59.8 BS 373 (3 point bending)
Elastic modulus Mpa 2430 BS 373 and BS 2782 (Method 335a)
Stress at proportional limit MPa 50.5 BS 373
Flexural strength MPa 59.8 BS 2782 (Method 335a)
Compression strength MPa 56.7 (parallel) BS 373 and BS 2782 (Method 345a)
Compression strength MPa 20.7 (perpendicular) BS 373 and BS 2782 (Method 345a)
Spread of Flame (Class available) 1,2,3 certification available BS 476 (Part 7: 1987) Large scale surface spread of flame
Coefficient of thermal expansion 4.94 x 10-5 /o
C2.74 x 10-5 /oF
ASTM D 696 (in/in/oC and in/in/oF)
Static Coefficient of Friction Dry 0.069 ASTM C 1028-96
Static Coefficient of Friction Wet 0.79 ASTM C 1028-96
Screw retention kN 2.5 +/- 0.2 BS 6984 1.5 inch No 6 screw 22mm depth
Nail retention kN 0.88 2.5 x 38mm wire nail, 22mm depth
Impact strengh kJ/m2 0.85 BS 373 (3 point)
Impact height M 0.66 BS 373 For 20 x 20, span 280mm, tup 3.3 lbs
Impact height M 0.38 BS 373 For 20 x 20, span 280mm, tup 4.4 kg
UV stability Good ASTM E383-B No change in mechanical strengh 375 MJ/m2
Vicat softening point 91 oC / 196 oF ISO 306

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InfiniTree and WPC Comparison

Property WPC - Wood Plastic Composites InfiniTree
Appearance Although WPCs contain wood they do not exhibit the colour grains or smooth texture of finished wood. Often, WPCs are covered in a heavy embossed texture to mask their gritty appearance. InfiniTree appears like real finished wood, embossed or not. Consumers, Customs officials and Arborist often have to be convinced InfiniTree is not wood.
Structure Due to their composite nature WPCs are open to absorb moisture. Closed cell homopolymer polystyrene that does not absorb water.
Mold Mold and Mildew grows on damp surfaces. Mold colonies will grow ideally where there is a constant source of moisture and the temperature is between 40 and 90° F. WPCs readily absorb moisture into the wood fibres that are often dried prior to manufacturing. InfiniTree’s structure does not absorb water so it is not susceptible to mold.
Termites WPCs contain wood and absorb water so depending on their constitution, termites my be a problem for WPCs. InfiniTree is impervious to termites as it contains no wood fibre or “food”.
Weatherproofing WPCs are known to fade drastically after short exposure to harmful UV rays. InfiniTree does not fade. Independent lab UV exposure testing shows a colour change of less than 2 (Delta E) after 1500 hrs (equivalent to 5 years) of UVCON exposure. The average consumer cannot detect a colour change (Delta E) of less than 2.
Swelling / Warping / Staining WPCs can swell, discolour and stain from moisture absorption. InfiniTree does not absorb water so it does not swell or warp from fluid retention.
Workability WPCs can be cut, sanded and screwed like wood. InfiniTree can we cut, sanded and screwed like wood.
Painting and Sealing WPCs can be both painted and sealed. Priming may be required due to the wood content. InfiniTree can be both painted and stained without priming.

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Working with InfiniTree

Fabricating InfiniTree

Cutting

General: The objective when cutting InfiniTree is to avoid melting the plastic. All recommendations are focused towards this end.

Equipment: Use standard woodworking tools such as table saws, chop saws, circular saws and miter saws. Even hand saws may be used to cut InfiniTree.

Blade:

• Use “Ripping blades” or coarse blades with 24 teeth or less on an 8.5” diameter.

• Carbide teeth are recommended. For superior cut quality, hollow ground teeth with a negative rake give premium results, however, are not necessary.

Cutting speed: All cuts should be made as quickly as possible without forcing the blade through the material. Always insure the blade travels at a constant speed.

Blade maintenance: Blade teeth must be kept sharp WD-40 or cooking spray can be used to lubricate the blade and extend its use between sharpenings.

 

Drilling and Routering InfiniTree

General: Unlike many wood materials, pre-drilling is often not required with InfiniTree as there are no grains to split. Your assembly should first be trialed without pre-drilling to increase cycle times and avoid unnecessary labour.

Drill speed: To prevent melting, lower RPM is best with InfiniTree. The optimum RPM for a given bit can be found easily by trial and error on a scrap piece. Begin with a low RPM and gradually increase. Find the RPM where the material begins to melt, then toggle the RPM back.

Bit: Standard wood working bits can be used. Spiral bits work faster and more easily for routering operations.

 

Sanding and Chiseling

Standard wood working chisels and files can be used on InfiniTree

Power belt sanders and orbital sanders will melt InfiniTree. Sanding by hand or using a palm sander will work as long as pressure is maintained for short periods of time.

 

Sealing InfiniTree

General: InfiniTree has industry leading weather resistance and the outer skin must never be removed or planed away. However, some complicated designs require the outer perimeter of the profile to be routered or end cuts to be left exposed. In any instance where the skin has been removed, exposing InfiniTree’s foam core, it is highly recommended, to seal the exposed foam with a water based acrylic sealant.

Sealant: Use readily available water based acrylic sealants. Once the exposed foam core is cleaned, simply apply sealant as recommended by brush or wipe on cloth.

Color matching: Water based acrylics are available in clear or pigmented. Mixing various acrylic colors can also allow for precise color matching with the skin.

 

Joining InfiniTree

Screwing InfiniTree

Screws: When connecting InfiniTree to InfiniTree or to chair and table frames it is recommended to use number 8-10 screws. Number 8 screws have a 0.164” major diameter (diameter including threads) and 10 threads per inch.

 

Mitre Joints

1. Cut 45 degrees.

2. Bore dowel holes slightly larger than dowel (opposite procedure vs. wooden fluted dowels) allowing for adhesive in the dowel holes.

3. Clean all debris.

4. Use ABS or fibreglass dowels. InfiniTree will out-last wooden dowels. Wood can be used for prototypes; however, the wood will eventually rot from water damage.

5. Apply adhesive in both holes and a 3mm strip (depicted as red area) on the bonding surfaces. Meter out the adhesive as not to allow surface over-spill.

6. Clamp frame or joint together (usually cramped as a square or rectangle) until bond is closed.

Best Practice:

Prepare the frame and all internal slats first. Then add the dowels and adhesive before clamping the entire assembly together as a whole.

 

Adhesive:

• Two part methacrylate adhesives designed for bonding thermoplastic materials (such as *Plexus MA310) are recommended. These two part adhesives cure in approximately 15 minutes.

• Take special care to prevent the two part adhesive from touching any visual surface, otherwise, it will "burn" the surface before it can be wiped off. As long as the correct amount of adhesive is consistently metered between the joints, masking the parts should not be necessary.

• Lastly, because the dowel holes are slightly larger that the dowels, use the extra "slack" to make sure the top visual surfaces at the mitre joint are flush. Alternatively, a bevel above the mitre cuts can be utilized to create a V groove that masks any alignment issues.

 

General Upkeep

Cleaning

InfiniTree is 100% plastic so it does not absorb water so cleaning is easy.

• Wiping the surface with a damp cloth or simply spraying with a garden hose should be adequate.

• If needed, mild soap or dish detergent can be used to help separate caked on dirt from InfiniTree.

• Never use petroleum or oil based products on InfiniTree such as solvents or harsh cleaners.

 

Scratch Repair

InfiniTree is scratch resistant, however, while working in a production environment minor scratches can occur if the product is pulled across hard surfaces or if tools are dropped or scrapped across the surface. Minor scratches can be buffed out with steel wool or 600 grit sand paper. Be sure to sand the surface in the direction of the grain.

• Heavy scratches can be filled using wood working crack fillers and putties.

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FAQs

Material

Q: What is InfiniTree made out of?

A: InfiniTree is 100% plastic plus a small but critical percentage of color, performance and weathering additives.

 

Q: Is there any wood or wood by-products in InfiniTree?

A: No, the InfiniTree formulation does not uses any wood, bamboo or other organic fibres that absorb water. When wood materials are mixed with plastic the wood can absorb water and become "trapped" within the wood/plastic matrix. This can lead to serious "black rot", insect, mold and mildew issues.

 

Performance

Q: What warranty comes with InfiniTree?

A: We supply a 5 year limited warranty. We warrant InfiniTree: i) contains UV additives to maintain the color, ii) is water resistant and will not rot, iii) will not splinter or crack, and iv) is free from factory defects.

 

Q: How does InfiniTree weather?

A: InfiniTree industry leading weatherbility is what makes it special. InfiniTree is highly engineered and developed specifically for outdoor applications. Our natural wood look, color and mechanical properties will last for over 5 years of outdoor InfiniTree. InfiniTree will not "grey" over time like real wood or WPC. The InfiniTree material has already been in the field for over 5 years and running.

 

Q: Will InfiniTree rot or mold?

A: InfiniTree will not rot, it contains no wood fibre. Mold can grow anywhere that is moist and damp. InfiniTree is naturally water and salt resistant so mold is less likely to be an issue. InfiniTree cannot be damaged by mold.

 

Q: How do I cut InfiniTree?

Cleaning

Q: How do I clean InfiniTree?

A: Wiping the surface with a damp cloth or simply spraying with a garden hose should be adequate. If needed, mild soap or dish detergent can be used to help separate caked on dirt from InfiniTree.

* Never use petroleum or oil based products on InfiniTree such as solvents or harsh cleaners.

 

Q: How do I repair a scratch?

A: Minor scratches can be buffed out with steel wool or 600 grit sand paper. Be sure to sand the surface in the direction of the grain. Heavy scratches can be filled using working crack fillers and putties.

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