When installing a Robert Plumb wall-integrated letterbox, we recommend the use of ‘HILTI Epoxy resin systems’. This allows the letterbox to be installed without screw-fixing and maintains the integrity of the design whilst providing a strong and reliable bond.

If the desired finish for the wall integrated letterboxes includes screw fixing, we recommend drilling the stainless steel with high power drill bits. A pilot hold prior to the desired diameter ensures a clean finish.

doormat

The natural coir matting used in our doormats is susceptible to swelling when exposed to water i.e. rain, hoses etc. To overcome this we offer two variations:

1. Maude Doormat (Outdoor)
2. Maude Doormat (Indoor)

The Maude Doormat Outdoor allows the natural expansion of the coir fibres to take place without altering the function or affecting the aesthetic appearance of the doormat.

We do stress that if the doormat is to be placed in an outdoor environment, only the Maude Doormat be selected. Robert Plumb accepts no responsibility for warping due to exposure to water for the Maude Doormat Indoor. Please note that when dry, the mat will shrink back to its original size.

If a client wishes to use an indoor frame in an outdoor situation, an outdoor sized coir mat will replace the indoor mat. This will create a necessary gap between the mat and frame to allow for the coir fibres to expand when exposed to water.

timber products

Unless otherwise stated, Robert Plumb timber products are constructed with New Guinea Rosewood. As with any timber product they are affected by natural weathering when exposed to the environment. The weathering process will turn the timber to a silver colour. However the original furniture colour can be retained by applying a rich penetrating timber oil, such as Feast and Watson Outdoor Furniture Oil ‘Clear’, every six to eight weeks. Smoothness of the timber can be retained by lightly sanding the horizontal surfaces with fine grade sandpaper as required.

Leaching occurs naturally in timber products and can cause light staining to the surface on which the timber is placed. Surfaces affected by leaching can be cleaned with a bleach and other cleaning products containing Oxalic acid.

stainless steel products

All Robert Plumb stainless steel products are constructed with marine grade 316 stainless steel (unless otherwise stated). In extreme coastal locations, brown discolouration, or tea staining, can appear on the surface of products. Tea staining does not affect the structural integrity or the longevity of Robert Plumb products and it can be controlled. Any tea staining can be removed with a mild abrasive cleaner and warm soapy water. Any minor scratches can be removed by rubbing with a Scotch Brite pad in the direction of the grain.

mild steel products

Pedge planters are constructed using 3mm mild steel and are acid etched then sealed using Penatrol. Robert Plumb recommends that they are re-sealed every 6 to 12 months with Penatrol, a product which is commercially available from all good hardware stores. The planters will rust and mark when placed on tiled surfaces and for this reason it is advised that they are placed only on gravel, deck and older style surfaces such as sandstone flagging and brick paving.

Pedge planters can also be supplied untreated in the event that they are proposed to be painted. Please ensure that they are rust primed prior to painting.