Corbro HM1 Underlay

Is Corbro HMI underlay waterproof?

Yes. Corbro HM1 is closed cell

Where is Corbro HM1 underlay made?

Corbro HM1 underlay is manufactured in Australia and meets Australian Industry Standards in manufacturing and polymers. No fillers are used in manufacture of Corbro HM1 underlay.

Does Corbro HM1 underlay require a upper layer?

Yes Corbro HM1 is a underlay. We recommend a rubber or similar covering of a flexible nature as an upper layer.

How thick should the upper layer be?

The thickness of the upper layer of rubber is subject to personal preference, considering factors such as the type and size of the animal and the intended application. Below is a general guideline of thicknesses that have been utilised with HM1 underlay over the past 30 years.

Veterinary: 4mm-8mm

Floor/Wall: Performance- 4mm -10mm      General- 6mm - 19mm

Does Corbro HM1 underlay need to be bonded to a surface? 

Yes bonding HM1 underlay to a surface effectively prevents foreign materials from infiltrating beneath the sheet and also ensures the sheets remain securely in place, preventing any shifting or movement."

Does the upper layer need to be bonded to the Corbro HM1 underlay?

Yes bonding upper layer to the HM1 underlay effectively prevents foreign materials from infiltrating beneath the upper layer and the HM1 underlay also ensures the upper layer remains in place.

What do I cut Corbro HM1 underlay with?

Corbro HM1 underlay can be cut with a utility/stanley knife or a fine tooth blade when using a power tools.

What adhesive to I use with Corbro HM1 underlay?

Generally, adhesives designed for rubber are suitable for use with Corbro HM1 underlay. Corbro HM1 underlay is compatible with a large range of adhesives. However for the best advice on the ideal adhesive for your needs it's recommended to consult your local adhesive supplier. It's crucial that the adhesive selected is compatible with both the underlay and the surface you're bonding to . Corbro HM1 underlay is a closed cell foam. Always make sure your adhesive is flexible in nature.

Repairs and re/bonding HM1 underlay

Because HM1 underlay is closed cell when re bonding HM1 underlay or repairing sheets it may assist to roughen the surface with sandpaper to help with adhesion. Alway make sure surfaces are cleaned throughly before  re-bonding. 

Corbro HM1 underlay sheet placement

You have the option to use Corbro HM1 underlay to cover the entire surface or to target specific areas as needed - the choice of how to configure the sheets is entirely yours. However when working with off-cuts, we recommend a minimum width of 50mm for optimal results.

When do I need to bevel/slope the edge of Corbro HM1 underlay

If Corbro HM1 underlay doesn't align with a surface and is left exposed, we advise cutting a tapered or sloped edge before attaching the upper layer. This precautionary step helps prevent tripping hazards and ensures a smoother surface for bonding the upper layer of Corbro HM1 underlay.