Alphatape™ is a special edgetape for laseredge technology that consists of two layers – the ‘hard’ decor layer, and a meltable functional layer.

The quality of the edgetape largely influences the quality of the final product. Sage Doors has partnered with German manufacturer MKT to supply quality laser edgetape to companies throughout New Zealand and Australia.

Many things take part in creating the perfect seamless edge; however, the best place to start is by choosing a quality edgetape with a hard functional layer. A soft functional layer catches dirt and looks like a glue joint over time. The hard functional layer on MTK’s Alpha Tape Zero PP helps create a seamless edge.

  • Category
    Kitchen Cabinet Panels
Specs / Details

As the first company in New Zealand to begin manufacturing doors and panels using laseredge technology, Sage Doors needed to source a laser edgetape before they could begin production.

They soon realised that not all laser edgetape was created equal. The quality of the edgetape used largely influences the quality of the final product. MKT, a German edgetape manufacturer was soon chosen for their high quality product.


Less shrinkage: hot air technology (airTec, Fusion Edge etc) uses extremely hot compressed air to melt the functional layer. PP doesn’t shrink during cooling like other plastics, ensuring a seamless edge with no step.

Co-extruded – to achieve the highest quality functional layer, Alphatape™ is coextruded as opposed to post coated. The outer decor layer and the functional layer are both extruded in the same line at the same time.


The hard functional layer on MTK’s Alpha Tape Zero PP helps create a seamless edge. A soft functional layer catches dirt and looks like a glue joint over time.

To test the hardness of the functional layer, dig your thumbnail into the functional layer or back of the edgetape. You should not be able to make any visible mark in a good quality functional layer.


To minimise variation caused by changing tooling for different width edgetape, the edgetape is manufactured in jumbo rolls 450mm wide. This ensures consistency throughout the outer finish, as well as uniformity in the thickness of the functional layer and outer decor layer. The wide rolls of edgetape are then sliced into required widths such as 21mm, 28mm, 35mm, 40mm, and 63mm.


Alphatape™ is the only edgetape on the market that can fully weld to itself at the joint in the corners, which helps create an invisible, seamless joint. You can’t see which edge was applied first.


PP is more environmentally friendly than alternative plastics like PVC or ABS. Less energy is required to manufacture it, and when burned, it produces only carbon dioxide and water.

As the edgetape is melted directly to the edge of the board, no harmful glues or cleaning products are required.


With laser edgetape, two colour matches are required – the colour of the outer decor layer and the functional layer. These two layers must be perfectly colour matched to ensure an invisible and seamless joint. A wrong coloured functional layer can look like a glue line.

The outer layer also needs to have the correct texture to match the board – MKT offer many finishes from Extreme Matte or Extreme Gloss to rustic woodgrains with about 20 other finishes in between!

But, we’ve done the hard work for you!

Sage Doors has colour matched some of the most popular colours in the melamine ranges so you can simply buy them off the shelf (check out the colour range tab).


Colourfast edgetape is more than a pigment of imagination with Aphatape™. PP is much more colourfast than PVC or ABS.

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If you have any questions or you’d like samples of any of our door profiles you've seen please contact us here.
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About the

We don't just make doors, we open doors. 
At Sage Doors, we open the door to modern, affordable and high quality doors throughout NZ. 

Our machinery. Our materials. Our men.

Our doors aren’t just any doors – they’re backed by our 3 ‘M’s - without these m’s, our doors wouldn’t be Sage Doors. They wouldn’t be be our trademarked brand names Acrygloss, Acrymatte, Invisedge, Timbalook, Lookcrete & Textaura. 

They would just be doors.

We’ve travelled around the globe to find the highest quality materials. We’ve speced out our machinery to our requirements. We’ve made our own machinery that we couldn’t buy. When the door is closed, we open it… so that you don’t need to! 

Sage Doors manufactures cabinetry doors & roller doors for the trade all over New Zealand. A NZ-family-owned business, Sage Doors has been operating for over 40 years, with a focus on quality and ingenuity to make the best product possible. We can't wait to work with you soon!