Scroll down for frequently asked questions on:

SMARTPLY PROPASSIV
MEDITE EXTERIOR
MEDITE PREMIER
MEDITE TRICOYA EXTREME
MEDITE TRADE

SMARTPLY PROPASSIV FAQs

Q: What tapes should be used with the panel?
A: Proven age tested airtightness tape should be used with PROPASSIV. The tapes specifications for various construction details are provided in the installation guide with a non-exhaustive list of suppliers. The guide is available on the website.

Q: Should fixings used to fix panel be taped over?
A: It is not necessary to tape over the fixings used to install PROPASSIV providing that the fixings have not been removed and reinserted or predrilled.

Q: Is the panel available in other thickness?
A: PROPASSIV is 12.5mm in thickness and is not available in other thicknesses. The 12.5mm thickness achieved the required airtightness and so it cannot be made thinner as it would impact the airtightness property, and increased thickness would not provide any further benefit but would add costs.

Q: Do you have to use PROPASSIV with VENT?
A: PROPASSIV can be used as the only racking panel, installed on the warm side of the insulation and therefore can be used as the only sheathing panel in a wall build-up.

Q: Where does this sit in the wall build up?
A: PROPASSIV is installed on the warm side (usually the internal side) of the construction as the product is also a vapour control layer.

Q: How is the product airtight?
A: PROPASSIV was made airtight by developing a specific and patented OSB recipe which prevents air passage through its thickness unlike standard OSB panels.

Q: What is the green layer?
A: The green layer of PROPASSIV is a UV cured coating providing increased and constant vapour diffusion factor. In addition, it provides a smooth and durable surface for taping the connections. Independent test showed that the taped joint was as airtight and durable as the panel itself.

Q: What is the fire performance of the coating?
A: PROPASSIV was tested to EN 13501-1 and the reaction to fire classification is D,S1,d0.

Q: Is the coating available in paint?
A: No. The coating is UV curable and is used and applied in controlled conditions and environment and cannot be provided in liquid form.

Q: Is the panel available in OSB/4 grade?
A: PROPASSIV is an OSB/3 panel and is not available in OSB/4 grade which would not provide further benefits.

Q: Is the panel waterproof?
A: No. PROPASSIV can be used in humid conditions (service class 2).

MEDITE EXTERIOR FAQs

Q: What is the average life expectancy of MEDITE EXTERIOR when properly coated and maintained
A: As processing, applications and conditions are outside MEDITE control, no guarantee can be made in respect of the final life expectancy of the product. If usage guidelines are followed for processing, coating, sealing, maintenance and repair EXTERIOR should perform similarly to standard timber and other wood-based panels. Customers that are require longevity should consider using MTX.

Q: Are there any product or storage and handling guidelines
A: Yes. EXTERIOR Usage Guidelines and EXTERIOR Storage & Handling Guidelines are available below.

Q: Are there any recommended coating systems?
A: Yes. Coating systems are available on our website. Only these certified systems can be recommended for MEDITE EXTERIOR. If a customer wants to use a different system, they must take responsibility for its performance. MEDITE EXTERIOR Usage Guidelines must be followed.

Q: Are there any fixing recommendations?
A: Fixings and fasteners must be stainless steel of A2 or A4 (EN 10088-1) quality or AISI type 304 or 316. Best practice must be followed when fixing. Contact MEDITE for further recommendations

Q: What is the difference between MEDITE MR and MEDITE EXTERIOR?
A: MEDITE MR is an interior grade MDF and cannot be used in external applications. MEDITE EXTERIOR is an exterior grade MDF that can be used outdoors and in wet/humid environments using suitable coatings systems.

Q: Are there any adhesives recommendations?
A: D4 class or equivalent adhesives must be used. Best practice and product guidelines must be followed.

Q: Can MEDITE EXTERIOR be used uncoated?
A: No. MEDITE EXTERIOR must be fully coated in line with usage guidelines for any exterior application. Customers should consider using MTX if an uncoated finish is required.

Q: Is MEDITE EXTERIOR as durable MTX?
A: No. MEDITE EXTERIOR does not have the same durability and dimensional stability as MTX. Customers that require longevity should consider using MTX.

MEDITE PREMIER FAQs

Q: Can MEDITE PREMIER be used on as CNC machine?
A: Yes, MEDITE PREMIER is suitable for CNC machining. Best practice should be followed when processing/machining

Q: Are there any adhesives recommendations?
A: D1 – D4 class or equivalent adhesives can be used. Best practice and adhesive manufacturer guidelines should be followed.

Q: Is MEDITE PREMIER suitable for deep routing
A: Yes, MEDITE PREMIER is suitable for deep routing. Best practice should be followed when processing/machining. If a high-quality machined surface is required customers should consider using MEDITE MR or MEDITE MRND.

Q: Can MEDITE PREMIER be painted/coated?
A: Yes, MEDITE PREMIER can be painted/coated using most interior grade coating systems. Best practice and coating manufacturer guidelines should be followed.

Q: Are there any fixing recommendations?
A: Standard interior fixings can be used. Best practice must be followed when fixing. Contact MEDITE for further recommendations.

Q: Is MEDITE PREMIER moisture resistant?
A: No, MEDITE PREMIER is an interior grade MDF that should be used in dry indoor conditions. For wet/humid indoor conditions customer should use MEDITE MR or MEDITE MRND. For wet/humid outdoor conditions customer should use MEDITE TRICOYA EXTREME or MEDITE EXTERIOR.

Q: Can other materials be bonded to MEDITE PREMIER?
A: Yes, MEDITE PREMIER is suitable for bonding veneers, laminates and surface coatings. Best practice and adhesive manufacturer guidelines should be followed to ensure a balanced panel.

Q: What is the difference between MEDITE PREMIER and MEDITE TRADE?
A: MEDITE PREMIER is general purpose MDF that be machined to a quality finish. MEDITE PREMIER should be used for more demanding applications and for machined/routered finishes. MEDITE TRADE is mostly used as a substrate and does not have the same machining properties as MEDITE PREMIER.

MEDITE TRICOYA EXTREME FAQs

Q: Are there any product or storage and handling guidelines
A: Yes. MTX Usage Guidelines and MTX Storage & Handling Guidelines are available on the website.

Q: Are there any recommended coating systems?
A: Yes. Coating systems are available on our website. Only these certified systems can be recommended for MTX. If a customer wants to use a different system, they must take responsibility for its performance.

Any coating applied to MTX should be of a high quality, applied uniformly with particular care on the edges, corners and other details (routed details, holes or fixing points…), and to the coating manufacturers’ specification, and in accordance with the MTX Usage Guidelines. This is to prevent any water ingress in the panel to prevent damage to the coating (blisters…).

Q. Surface Blisters or Crystalline Deposits appearing on the surface of the material?
A. Moisture ingress behind a coating system can lead to small blisters or crystalline deposits appearing on the board. This can usually be identified by the appearance of ‘tide marks’ on the board. Should this occur the board can be successfully refurbished by the removal of the existing coating and re-application. Our guidelines for doing this can be found here.

Q. What is the warranty on MTX?
A. MTX is guaranteed for 25 year in-ground and 50 year above ground. Please contact us for further information on this guarantee.

Q: Does machining/processing affect MTX properties or warranty?
A: No. MTX is modified uniformly through the cross section, not just at the surface. As with all timber and wood-based panels processing can affect how the material will react in an environment. Best practice should be followed when processing.

Q: Can MTX be laminated?
A: Yes. Best practice must be followed when laminating to ensure the finished panel is balanced. As with all timber and wood-based panels lamination can affect how the material will react in an environment.

Q: Are there any adhesives recommendations?
A: D4 class or equivalent adhesives must be used. Best practice and adhesive manufacturer guidelines must be followed.

Q: Can MTX be used uncoated?
A: Yes. MTX does not need a coating to maintain its durability and dimensional stability. Any coating applied to MTX should be of a high quality and to the coating manufacturers’ specification, and in accordance with the user guidelines. This is to prevent any water ingress in the panel to prevent damage of the coating (blisters…).

Q: Can MTX panels bend to a curve?
A: Thin MTX panels can be bent into a curve.

Q: Are there any fixing recommendations?
A: Fixings and fasteners must be stainless steel of A4 (EN 10088-1) quality or AISI type 304 or 316. Best practice must be followed when fixing. Contact MEDITE for further recommendations.

Q: What applications can I use MTX for?
A: Most external and internal applications such as architectural façades, signage, doors and windows. It is the responsibility of the customer and/or end-user of MTX to ensure that the final use of the panel is checked by the appropriate authorities for conformity with local circumstances, building codes, regulations and standards and checked by an appropriately qualified engineer as required.

Q: What are the requirements of façade systems and can MTX be used for this application in the Netherlands?
A: The requirements of the Building Decree 2012 in the Netherlands for fire mitigation is Euroclass D (or Euroclass B for height above 13m and other situations). This requirement applies to the finished cladding system and not for the raw individual components. MTX can therefore be used in this application provided it is finished (laminate, coating or paint) and end-users should ensure that the finished product complies with the requirements of the Building Decree. This requirement applies to all external applications including dormers, soffits…

Q: Is MTX suitable for a pool enclosure or other humid environments?
A: Yes. MTX has a superior durability to traditional timbers used in pool areas.

Q: Is MTX waterproof?
A: No. MTX is moisture stable. As MTX is a wood-based panel it can absorb low levels of water. Moisture will not negatively impact board properties

Q: Can MTX be used the same as standard MDF?
A: Yes

Q: What makes MTX different to standard MDF?
A: The key difference between standard MDF and MEDITE TRICOYA EXTREME is that the raw material wood is acetylated. The acetylation process modifies the wood rendering it more dimensionally stable and, because it is no longer digestible, extremely durable.

Q: Does MTX need any special tooling?
A: Tungsten-carbide-tipped tooling is recommended for machining MTX.

Q: What is the Reaction to Fire performance of MTX?
A: MTX as a raw panel (sanded, unfinished panel) is rated Euroclass E (thickness ≥ 9.0mm)

Q. Is MTX non-added formaldehyde panel?
A. Yes. We do not add any formaldehyde during the manufacturing of MTX.

MEDITE TRADE FAQs

Q: Can MEDITE TRADE be machined/routered?
A: Yes, however the same quality finish cannot be expected when compared to PREMIER or others. If a machined finish is required customers should consider using MEDITE PREMIER or MEDITE MR

Q: Can MEDITE TRADE be painted/coated?
A: Yes, MEDITE TRADE can be painted/coated using most interior grade coating systems. Best practice and coating manufacturer guidelines should be followed.

Q: Are there any adhesives recommendations?
A: D1 – D4 class or equivalent adhesives can be used. Best practice and adhesive manufacturer guidelines should be followed.

Q: What is the difference between MEDITE TRADE and MEDITE PREMIER?
A: MEDITE TRADE is manufactured for easier handling, lower transport costs and reduced tool wear. It is general-purpose MDF that is suitable for most on site applications. MEDITE PREMIER should be used for more demanding applications and for machined/routered finish.

Q: Can MEDITE TRADE be used in the same applications as MEDITE PREMIER?
A: MEDITE TRADE can be used in similar applications to MEDITE PREMIER. MEDITE TRADE is mostly used as a substrate for coatings, laminates, veneers etc...