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Why UltraShield

Dlaczego UltraShield


Potential problems for non capped composite wood product

NewTechWood UltraShield® Technology

In 2010, NewTechWood® began a project to design and formulate the most durable, most attractive, most fade and scratch resistant, most beautiful and most reliable composite deck board in the industry: NewTechWood UltraShield®.

Few years of engineering and countless hours of field-testing has yielded a product of unmatched performance and beauty. UltraShield combines the proven strength of high density polyethylene plastic and wood fibers with an outer shell of polymer that completely encapsulates the board in an impermeable layer of protection that provides scratch, stain, and fade resistance.

UltraShield, is a true game changer in the composite decking industry.

Conventional wood plastic composites are a thing of the past.




UltraShield is a capped wood plastic composite, which means it has an advanced premium shield encasing ALL
four sides
around its inner core. The shield and core are extruded together under a very high temperature
mold simultaneously, so there are no adhesives or chemicals that are harmful to the environment.

The core is made from carefully selected recycled material and highly dense recycled hardwood and softwood
fibers that allow for greater strength and durability, and best of all it’s 100% recyclable.




The shield uses an advanced engineering polymer


to create a formulation which gives the boards Ultra Protection against:

× Stains
Wine, coffee, soy sauce, vegetable oil etc cannot stain the board. Messes can be easily wiped off the surface because the liquid never gets absorbed by the shield, which makes UltraShield very easy to clean and low maintenance.

× Mildew, Mold, Rotting, Splitting or Cracking

The shield provides an impermeable layer, splitting is not able to occur on the surface of the board, therefore, giving UltraShield a longer life span than regular uncapped composites.The shield provides protection from the core of the board and prevents mold and mildew from growing and eating at the board.(Mold could still grow on the surface of the board from standing water,but can easily be cleaned away with a hose and /or broom as it is not growing on the board but on the water)

× Color Fading
The unique formulation of the shield ensures its color stays much longer compared to conventional composite decking. The result of many hours of testing have shown that the color is steadfast and has only shown to have very minor changes in color over many years.

× Painting or Oiling

The multichromatic colors are a part of the shield’s formulation meaning that you will never have to paint, sand, or oil again.


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Backed by a warranty

UltraShield Decking is backed by the most comprehensive warranty in the industry:
25 years limited transferable warranty

NewTechWood® is so confident in the product and its long lasting performance, that we will pay for labor expenses* related to the replacement of NewTechWood
UltraShield® decking material if the deck under performs, so don’t worry and just sit back and relax.


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Why insist to cap completely around ?


Because this is the only way to give ULTRA protection

Making the board capped 360 degrees will :

                    Give the board maximum protection against: mold/mildew, stains, fading, cracking, cupping, and swelling**                                                                

** Note: swelling can still occur on the cut ends so it is recommended that the ends that are cut have a sealant or end cap applied to them  

Capping 360 degrees provides complete protection all around the board and even in the groove of the board. This is the only way to

complete protect the board from UV, water, insects, and any other mold/mildew from attacking the core** 

** Note: The core is still susceptible to the outside elements so it is recommended to either use a sealant or end caps to cover up any ends that are not protected. 





 UltraShield vs Conventional Decking


Test 1: Stain

Step 1. Stain with black ink

                                  UltraShield decking

                              Conventional decking

Step 2. Wipe out half of the ink

                                 UltraShield decking

                             Conventional decking

Step 3. Wash off by water

                                UltraShield decking

                             Conventional decking

Last Step: Dry and see the result

                                UltraShield decking
No penetration through the top
                                layer and no stain left

                              Conventional decking
                                     Stain remains


Test 2: Scratch Test

● Use 1mm needle

● Test scratch damage under 8N-20N pressure

Test Standard: FLTM BO 162-01





UltraShield® 20N: No obvious mark

Conventional : 8N : Mark appears

 UltraShield® 20N: No obvious mark

Conventional : 8N : Mark appears


Test 3: Abrasion Test

● Testing: 750g Weight, 60 turn/min, 1000 turns

Test Standard: ASTM D4060



Conventional composite wood

Scratch mark and the wore off powder weight after test

UltraShield® 23mg

Conventional composite wood 81mg


Test 4: UV Test

 ● QUV chamber test up to 3000 hours,Observation & record in every 500 hours


UltraShield® 500 hrs:Delta E :0.65 -1.25

UltraShield® 1000 hrs:Delta E :0.92 -1.41

UltraShield® 1500 hrs:Delta E :1.45 -1.63

UltraShield® 2000 hrs:Delta E :2.55 –3.54

UltraShield® 2500 hrs:Delta E :2.72 -3.63

UltraShield® 3000 hrs:Delta E :2.72 –3.75


Tested in a QUV chamber for 3000 hours,

experts say no visible color

change can be observed

at a Delta E < 5.0

Test 5: Boiling Test

1. Put the test samples in the container (the water level needs to over the samples by at least 5 mm or more

2. Turn on the heating plate to 100 degrees Celsius and record/observe every 2 hours

3. Samples need to be taken out every day and the duration should be recorded.
   The duration is recorded after the temperature of the hot plate reaches 100 degrees Celsius

4. Repeat procedure 1-3 on the second day.

Boil the board up to 80 hours or more





Pictures above show UltraShield after a 90 hour boiling test.

The results show no separation between the cap layer and the core, no damage, and no cracking

Five types of PE Composite Wood in the Current Market

Based on PE composite wood market, they can be divided into capped and non capped composite wood.
Five different types of composite wood can be identified as follows.





No Skin?


First generation (non capped) composite wood has no cap layer to protect the core.


Some capped composite wood products contain wood powder in their cap layer,
which means that wood powder is still exposed to the elements and can still succumb to the problems of the first generation.

Potential Problems

1. Crumbling
2. Color Fading
3. Fungus & Mold & Mildew
4. Cracking
5. Scratching
6. Staining

Without a capped layer to protect the core, the wood fiber is exposed to the surface and damaged
by various harsh weather condition, UV, moisture, bacteria, fungus and mold.

Not only the color will be faded out, the structure and composition will be degraded or even destroyed.
Many severe problems have already risen during the past few years in the wood composite market.

1. Crumbling

When the first generation composite boards are exposed to the UV and water it begins to decompose.
This is due to an improper amount of bounding agent and antioxidant added to the composite material.

Ultimately, the wood fiber absorbs moisture with UV together which causes the composite decking to decay, crumble, deteriorate, and rot. 


First generation composite decking is not scratch resistant at all, it can be easily scratched with a person’s fingernail after it has started to weather



2. Color Fading

The reason for color fading comes from the wood fiber content. Wood is naturally going to fade if not protected,
and most of the time manufacturers are brushing their boards so that damages the plastic allowing the wood fibers
to be exposed to the surface. Inconsistent fading occurs due to the manufacturer’s inability to control the consistency
of the colorant and raw materials being added.



Color difference-many decks were faded with uneven color resulting in some boards being lighter and others getting darker.

3. Fungus & Mold & Mildew

Fungus, Mold, and Mildew problems are usually found in climates with extreme humidity or climate change.
The wood fibers are being attacked because they are exposed to the elements and since they are not protected by a sealant or treated.

Many people have tried to use deck cleaners to clean off the mold, but once the layer that is sealed/protected
by the cleaner wears off the mold will just attack the other layers below.

4. Cracking

Many manufacturers add calcium / filler to their product to enhance the stiffness of the board, but it makes the board more brittle.
Therefore, when installers try to drill into the board there is a potential that it might crack.

5. Scratching

The first generation composite’s scratch resistance is very poor and this is due in part because of the wood fibers.
Wood fibers inherently have a low scratch resistance and when the manufacturer brushes/sands the board it
creates a coarse effect on the surface allowing for even less scratch resistance.

6. Staining

Without any cap protection, any stains will be absorbed by the wood fiber or penetrate in between the wood fiber and polymer directly and permanently.

Half Shield?


 Some capped composite wood is only half capped,this solves some problems, but other problems occur

Capping the top half of the board does provide higher stain, scratch, and UV resistance, however,
the underside and grooves of the board are exposed to the elements and that creates dry and wet effect on the top and bottom.

7. Swelling & Cupping

The shield uses a virgin engineering grade polymer that has extremely low water absorption rate.
The shield on a half capped board is only protecting the top meaning that the bottom is still
exposed in a similar fashion as the first generation composite.

Therefore, on a very humid day the bottom will continually absorb moisture and the top will be
almost completely dry this creates a cupping/twisting effect on the board similar to real wood.
The force of this effect can be so strong that it actually tears/splits the core in half as shown below.

8. Cracking in the cap layer

As the inner core continues to gain moisture the force could get so strong that it tears the cap layer as wel.

Shield cut?

Some manufacturers extrude a fully capped board and then cut the grooves on both sides of the board to save money
on having one mold do two profiles (grooved and ungrooved). The other reason could also be that technically
they are not as advanced in mold designing.


A board with an uncapped groove still allows moisture to be absorbed into the core through the entire length of the board.
Therefore, there is a potential for swelling, cupping, and cracking to exist over time.

360 degree

capped shield!



Capping 360 degrees provides complete protection all around the board and even in the groove of the board.
This is the only way to complete protect the board from UV, water, insects, and any other mold/mildew from attacking the core**

**Note: The core is still susceptible to the outside elements so it is recommended to either use a sealant or end caps to cover up any ends that are not protected.




UltraShield®  Advanced Capped Composite Material

has a strong and durable polymer shield capping the core 360 degrees.

The Core is made of wood fiber, PE polymer, and additives.

The Shield is made of special engineering grade polymer and additives
with extremely low water penetration.

The Shield prevents moisture penetration inside the core, resisting problems like:
× No Rot
× No Split & Crack
× No Fungus & Mold**

The Shield is durable and gives a longer life span so that you can enjoy your time on your deck with minimal maintenance.

**Note: Mold can still occur on the board through outside substances such as: food, tannins, and etc.
that are left on the surface of the board if not cleaned within a reasonable amount of time. Please read the care and cleaning guide to get more information.

The Shield gives maximum protection against:
√ Staining
√ Fading
√ Mold/Mildew
√ Scratches

The Shield maintains a pleasant look for years to come and needs no painting, sanding, or oiling of any kind.