FAQs

Please select one of the key words below to filter the list of frequently asked questions.

What glue or adhesive do you recommend for Type 1 Bonded?

The Type 1 Bonded Fix is made of ABS, which is a relatively good plastic for bonding, and there are many structural adhesives suitable for a wide range of panel materials: e.g. a 2-part structural acrylic adhesive, a matched adhesive for solid surface (Corian®, Hanex®, etc.) or solvent weld for bonding to acrylic.
Epoxy resins, such as Araldite also work well.
We have also used MS polymer adhesive mastics with great sucess, such as Parabond 500, Soudal Fix-All High Tack/Turbo, Everbuild Stixall, Evostik Sticks like sh*t, to name a few; these are particularly easy to use, tough, strong and odour-free.
Generally, the button fixing screw will fail before any of the the adhesives mentioned give way.
A Type 1 Bonded has been tested (rebated in Corian® with matched adhesive) to destruction at an astonishing 625Kg, when the screw holding the button sheared!
When ‘face-fixed’ (ie. not rebated) using Parabond 500, the plastic of the Fix fails (not the adhesive bond) at approx. 200Kg.

Can I use Button-fix to mount ceiling panels?

Type 1 Fixes may be used to mount ceiling panels quite successfully; using the ‘Buttonfix strength testing report’ here, and using figures based on the maximum perpendicular pull-out force rather than shear force, we can ascertain a maximum panel weight.

For example; mounting a panel using 4 x face-fixed Type 1 Fixes, a maximum panel mass of 148kg may be accommodated (Including a 1.4 safety factor and using bolted fixings).

Type 2 Fixes are NOT suitable for ceiling panels, if the panel load is pulling directly to disengage the Fix and Button. Even if a ceiling panel under test appears secure, and the panel weight is well below the Fix disengagement force, the steady load on the Fix ‘jaws’ causes creep in the polymer, which may lead to the panel disengaging days, or even weeks later.

How do I use the load/strength test report?

For Type 1 Fixes, ‘Buttonfix strength testing report’ is available here.

The figures in the table are for four Type 1 Fixes (in a standard ‘2 x 2’ array) and are already adjusted to give a 1.4 safety factor. These figures are actually the maximum for two Fixes only; this is because theoretically, allowing for inaccurate fixing of the components, only two Fixes can be guaranteed to be loaded at one time: this applies to any size of panel, with more than 4 Fixes.

In practice, with reasonably accurate fixing, and with their inherent flexibility, the load will be shared between most of the components, and the safe loads will increase with an increase in the number of Fixes used.

As can be seen from the design tables, It is a good rule of thumb to aim to keep the ‘cantilever’ distance — that is the ‘shelf depth’ — shorter than the height between the Fixes.

How do I mark out / set out Button-fix?

On the Type 1 Fix, the two small notches at the top and bottom edge of the Fix are to help marking out: The notches may be used to mark, or line up the centreline of the Fix. By also marking out, and drawing a line through the centre of the screw holes, the centre point of the Fix may be determined, which is also the point at which the Button will sit once installed. Alternatively, to avoid the need for precise measuring of the button and fix positions, the Type 1 and Type 2 Button marker accessory tools may be used. For detailed instructions of how to mark out/set out Button-fix please see the relevant Instructions for use document under the useful information tab.

I use screws which are not those specified – can I use them to attach the Buttons or the Button-fix?

Yes, you probably can, but you will need to try them out to see. Please ensure that the heads of any screws used in the Buttons, or in the rebated Fixes, are flush, or just below the surface of the mouldings, so that they do not clash. See the ‘Videos’ section of the website for recommended fixings, or for more detail download the ‘Suggested Fixings for Buttonfix’ PDF from the Useful Information page.
The limiting factor dictating the maximum load is, in most cases, the pull-out load of the fixing screws, and the strength of the materials being mounted. Therefore, the fixings used should be the largest practical, given the thickness of the panel to be mounted. For Type 1 Fixes on thin panels, Varianta Euroscrews (CSK Ø6.2mm for Ø5mm pilot holes) are recommended.

To keep a panel flat I have used a lot of Button-fixes and the click fit is now too strong, what can I do to make it easier to fit and remove?

For Type 1 Fixes, if you remove the détente ‘ears’ using a small flat screwdriver or needle nosed pliers (See the ‘useful tips’ section under the Type 1 Fix heading in the ‘Videos’ section of the website), this will remove the ‘click’ fit, reducing the force required to install and remove the panel. If you do this, please protect your eyes, or cover the Fix with a gloved hand. If required, you can remove all of the détentes to facilitate a frequently removed vertical panel, but please be aware that there will be no force other than gravity keeping it in place.

On Type 2 Fixes, the détente force can be reduced by carefully removing a small amount of material from the détente ears using a small file or sharp knife (file or cut from both sides, retaining the angled profile of the edge); do this incrementally until the required pull-off force for the panel is achieved.

Can I use Varianta Euroscrews?

The orange Buttons are designed for this purpose and will accept countersunk Ø6.2mm Euroscrews for Ø5mm pilot holes. While both the Type 1 and Type 2 Fixes are not specifically designed for use with Euroscrews, they can function satisfactorily. For instance the Ø6.2mm Euroscrews are a tight fit in the Type 1 Fix holes, but they install readily when the Fix is in-situ with the pilot holes in the panel to guide them. The Type 2 Fix will only accept Ø4.2mm Euroscrews for Ø3mm pilot holes.
For more detailed information, including screw length/panel thickness guides, please dowload the ‘Suggested Fixings for Buttonfix’ PDF from the Useful Information page.

Can I lock/secure panels?

The détente will generally deter accidental displacement; if necessary an aluminium or PVC extrusion, or even a small block may be screwed into the 15mm ‘drop’ gap above the panel, to stop it being lifted.
By orienting the Fixes at 90 degrees, panels can be slid in sideways. Adjacent panels can also be mounted similarly, but of course the first panel(s) installed will effectively be locked in place, unless the subsequent panels are removed: This can be advantageous for providing security for a run of panels, requiring only the last panel installed to be secure.

Do I have to leave a gap at the top of a panel?

Not necessarily; by orienting the Type 1 Fixes at 90 degrees, panels can be slid in sideways. Adjacent panels can also be mounted similarly, but of course the first panel(s) installed will effectively be locked in place, unless the subsequent panels are removed. This can be advantageous for providing security for a run of panels, requiring only the last panel installed to be secure.
Also, Type 2 Fixes allow a direct push/pull fit without the need for any gap.

Can Button-fixes withstand shock loading?

Type 1 Fixes can carry a significant cantilever load; as a general rule of thumb, it is a good idea to keep the cantilever distance, that is the shelf depth, shorter than the height between the Fixes. In most circumstances, the screws will pull out of the panel before the Button-fixes fail. Please download our load test results from the Useful Information page on this website. This should help you to specify the number of Button-fixes to use for a given load. However, we strongly recommend that you perform your own tests for your specific application and the materials that you intend to use and that you use a generous safety factor.

Type 2 Fixes are designed as a push/pull fit, and will therefore not take a cantilever load. Assuming that the screws and substrate are properly matched, a vertical panel under no other loading than its own weight, fixed with four Type 2 Fixes, can safely weigh 80kg. Other configurations should always be properly tested by the user to their satisfaction.
Each Type 2 Fix requires approximately 12kg force to separate the Button and Fix; this should be taken into account when designing your installation and defining your safety factors.
Type 2 Fixes should only be used on vertical panels or in applications where the weight of the panel does not act to separate the fixing. In critical applications for Type 2 Fixes, always use the safety cord accessory.
Please note that safety cords are sold separately from the Button-fixes.

When would I use Varianta Euroscrews in the Buttons?

Varianta Euroscrews are useful for giving good strength in thin panels, normally in particleboard. The orange Buttons are designed to accept countersunk Ø6.2mm Euroscrews for Ø5mm (0.197″) pilot holes.

For more detailed information, including screw length/panel thickness guides, please dowload the ‘Suggested Fixings for Buttonfix’ PDF from the Useful Information page.

Can the gap between panels be zero when using Type 1 Fixes?

Yes, but you will need to machine a stepped rebate for the Type 1 Fix moulding – please ensure that the Fix is not sub surface, otherwise the panel may bind up on installation. Note that if the Fixes are used on the removable panel, the screws holding the Fix will no longer go into the full panel thickness, and may have a reduced pull-out strength.

What screws or fixings should I use?

See the ‘Products’ section of the website for recommended fixings, or for more detail download the ‘Suggested Fixings for Buttonfix’ PDF from the Useful Information page.

The limiting factor dictating the maximum load is, in most cases, the pull-out load of the fixing screws and the strength of the materials being mounted. Therefore, the fixings used should be the largest practical, given the thickness of the panel to be mounted. For Type 1 Fixes on thin panels, Varianta Euroscrews (CSK Ø6.2mm for Ø5mm pilot holes) are recommended.

Can I use machine screws?

Yes; the lime green countersunk screw Button will accept an M5 countersunk screw. The rebated Fix will accept M4 countersunk screws, while the surface-mounted Fix will accept M4 pan head screws, ideally with washers, or for maximum strength M5 pan head screws, although they are a tight push fit in the fixing holes.

Can I space off the Buttons?

Yes, generally using M5 x 25 steel ‘penny’ washers; however, if the Buttons/Fixes are binding due to angular misalignment, it is best to use washers that are within the ‘footprint’ of the Button (i.e. Ø18mm or less, for example part number 1000750000VR here) which will allow more angular tolerance. Bear in mind that spacing off the Buttons will increase the bending forces on the button fixing and reduce its weight carrying capacity.

How do I use Button-fixes on bath panels?

Type 2 Fixes are ideal for mounting bath panels, especially in conjunction with the Type 2 Fix-markers (available on the Accessories page), which remove the need for any measuring. We have made a video, showing a typical bath panel installation. Note that you can get by with fewer Fix-markers; you just need to do the Fix-marking in two or more goes, having first marked, and fixed, the two top corners of the panel.

 

How many Button-fixes do I need per panel?

If the load is purely in the vertical plane, then four Button-fixes will usually be sufficient to carry the load of most timber based panels that one person can lift. However, in order to keep the panel flat you may wish to use more Button-fixes. As a rough guide, placing Button-fixes on 600mm is usually good practice but it will very much depend on your particular application.

For more detailed loading information on Type 1 Fixes, please see the ‘Buttonfix strength test report’ on the Useful Information page.

The Type 2 Fix is ideal for applications where the emphasis is on ease of fit rather than strength. Assuming that the screws and substrate are properly matched, a vertical panel under no other loading than it’s own weight, fixed with four Type 2 Fixes, can safely weigh 80kg. Other configurations should always be tested by the user.
Each Type 2 Fix requires approximately 12kg force to separate the Button and Fix; this should be taken into account when designing your installation and defining your safety factors.
Type 2 Fixes should only be used on vertical panels or in applications where the weight of the panel does not act to separate the fixing. In critical applications for Type 2 Fixes, always use the safety cord accessory.

Can I fix Button-fixes to metal structures?

You can use Ø4.8mm pop rivets, with washers to protect the plastic of the Fixes, and/or self tapping screws, but you will need to satisfy yourself of the fixing type and loadings by thoroughly testing the application. Recessing the Fixes into sheet material or tube would be possible, but would require machining with appropriate equipment.

Want to ask us a question?

If you still can’t find out what you need to know, please submit your own question on the Contact us page of this website. We will respond to you as soon as possible by email, as well as posting the answer here.

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