M. Marcus Finish and Product Care Information at Trade Door Handles

M. Marcus Finish and Product Care Information

The two core ranges from M. Marcus are the Heritage Brass and Sorrento, both particularly good quality but they do vary in price, but why?

The main difference between the two ranges is that all the products in the Heritage Brass range are made from quality Brass where the Sorrento range is made from Zinc Alloy

So, what is the difference between Brass and Zinc Alloy hardware?

Weight

Brass products could weigh around double that of identical products made from Zinc

Cost

The cost of brass as a raw material is much greater than Zinc and therefore the manufacturing cost of brass products is higher than that of Zinc products.

Longevity

Brass is far less prone to corrosion than Zinc. Brass provides a more stable platform for the plating process – Chrome or Nickel will adhere to solid brass far more firmly than it does from Zinc. Plating finish applied to solid brass products is far more durable than when it is applied to Zinc Alloys.

Zinc products can deteriorate in a matter of weeks or months due to:

Extreme temperature changes
Rain and frost
Vehicle pollution
Salt in the air in coastal areas.

Many people will still use zinc door handle on external doors due to appearance and price but with these facts, it would be recommended where possible to use brass-based door handles on external parts of the property.

Finish Guarantee

You will find that most manufactures will not guarantee the finish of the product but more the handle quality and spring mechanism. Over a period, you will find that the lacquer coatings, especially on external fittings can suffer a possible breakdown. Therefore, the life of the lacquer is beyond the manufactures control and cannot be guaranteed.

Finish Information

Lacquered Finishes

Comprising Polished Brass, Satin Nickel, Antique Brass, Matt Bronze, Satin Brass, Jupiter, Mercury, and Mayfair.

All lacquered finishes will eventually break down over time. Lacquer breakdown will occur more frequently on products exposed to the climate, particularly in coastal areas and in polluted environments.

Regularly removing dirt and watermarks with a non-abrasive cloth will help maintain the life of this finish.

For products used externally applying a non-abrasive light wax coating will protect the lacquer and could extend its life. DO NOT USE metal cleaners or aerosol sprays as these will damage the lacquer.

External fittings will also benefit from a periodic light oiling of springs and moving parts.

The life of the lacquer is beyond the manufacturer’s control, and therefore cannot be guaranteed.

Polished Chrome, Satin Chrome, Apollo and PVD Finishes

Regularly removing dirt and watermarks with a nonabrasive cloth will help maintain the life of these finishes. External fittings will also benefit from a periodic light oiling of springs and moving parts.

Black Iron Door Furniture

Regularly removing dirt and watermarks with a non-abrasive cloth will help maintain the life of this finish. Exposure to humidity will cause the product to rust so all external fittings will benefit from an occasional wiping over with a lightly oiled cloth and a periodic light oiling of springs and moving parts. If the decorative material shows signs of ‘Chipping ‘remove any flaking or loose paint, making sure the surface is dry and grease-free, then spot the affected area with enamel paint.

MATT Bronze

Polished Brass, which is not lacquered will naturally darken with time, however, with our MATT Bronze finish we have aged the brass and applied a clear lacquer. Over a period, the bronze colour will lighten along any edges and surfaces that are frequently touched and create a naturally aged appearance highlighting frequently touched areas and exposing the brass below. As the finish will change over time, there is no warranty on this finish.

Antique Brass

With this finish, we polish the brass and apply a bronze patina over the total surface. Using soft brushes our experienced polishers remove some of the bronze patina to expose the brass below thus highlighting the variance of shades making each piece both appealing and unique. To preserve the final appearance, we apply a protective coating of clear electrophoretic lacquer.

Polished Nickel, a Living Finish

Our Polished Nickel finish is nickel plating on highly polished brass. The nickel finish is not coated and will therefore oxidise naturally. If not regularly buffed with a soft cloth the nickel plate will subtlety change over time by taking on an aged patina.

Solid Bronze Rustic, a Living Finish

These striking products are made using molten Bronze flowing into cavities within a sand mould. This casting process leaves light surface indentations to bestow a rustic appearance, which contrasts in texture to other smoothly finished products. A light bronze patina is applied by hand on the cast bronze creating a country-style appearance. When leaving the factory these products are coated with paste wax. This acts as a barrier to prevent oxygen from immediately oxidizing the bronze surface. Over time, this layer is worn away allowing water and oxygen to then oxidise the surface. Over a period, the bronze patina will lighten along any edges and surfaces that are frequently touched, creating a naturally aged appearance as the bronze below is exposed. When untouched the finish may darken as the bronze oxidises. As this is a living finish, products will not be identical, there will be slight variation in hue and tone. Avoid exposure to abrasives or chemicals as these will mar the surface finish. It is good practice to occasionally wax the surface using Carnauba wax. As the finish will change over time, there is no warranty on this finish.

Black Iron Rustic

Our Black Rustic range is produced with molten iron flowing into cavities in a sand mould and made malleable by a process known as annealing. The surface of this product will reveal slight indentations created as the metal cools while the shape is being formed to bestow an aged look. After casting we treat the iron with a process called Phosphating, which slows the rusting process, and coat the product with a powder-coated black finish. Any Iron product is prone to rusting, please read our maintenance recommendations.

Frequently Asked Question

M. Marcus and Heritage Brass

M. Marcus started selling products under the brand name of Heritage Brass in the 1980’s so we are now also known as Heritage Brass.

Quality of Brass

All our Heritage Brass door furniture is created using hot forged brass which ensures the best manufacturing process for both strength and superior finish.

Durability of Springs

The springs used are crucial to prevent breakages, so we source our door furniture springs from a long-established Italian manufacturer. Our springs have been cycle tested to provide 100,000 lever operations, and for residential use, we offer a 10-year mechanism warranty.

Locks and Latches

Our handles are not supplied with locks, latches, or escutcheons. These items need to be purchased separately for the specific function required. Our lock ranges are shown on pages 105-107.

Door Thickness

The spindles we supply as standard with our door furniture will in most cases be suitable for common domestic door thicknesses in the range of 35 to 44mm without having to be cut down. However, as door thicknesses may be greater, we can supply to special order longer spindles for doors of 50mm and upwards.

Fixing of Round Rose Door Furniture

On levers where both woodscrews and bolts are supplied, we highly recommend that the bolts are used to securely clamp the handles to the door and not the woodscrews, as with just the woodscrews the handles will not be secured sufficiently on the door. The woodscrews are only to be used as an additional means to limit any tendency of the inner roses to rotate once fitted.

WARRANTIES

Warranties for Door Hardware

These warranties are offered in addition to any statutory legal rights for the sale of goods.

M. Marcus will not be liable for any incidental or consequential damages arising from the sale or use of our products. We assume no liability for any labour charges regarding the removal or reinstallation of the products; nor will we cover any carriage costs. Our only obligation will to be to replace any defective products.

For terms and conditions of sale please refer to our current retail price list.

10 Year Mechanism Warranty

Sprung sets will be replaced if within 10 years from the date of purchase the spring mechanism breaks due to faulty workmanship or materials. The warranty is made void by any breakage which in the manufacturer’s opinion arises from misuse or lack of maintenance. To validate any claim under this warranty a receipt or other proof of the age of the installation may be requested.

Everbrite: 10 Year Finish Warranty

Our ‘Everbrite’ branded products will be replaced if within 10 years from the date of purchase the decorative finish discolours due to faulty workmanship or materials. This warranty applies only to the original purchaser. The warranty is made void for any discolouration which in the manufacturer’s opinion arises from misuse or lack of maintenance. To validate any claim under this warranty a receipt or other proof of the age of the installation may be requested.

M. Marcus reserve the right to amend products & sizes without notice and all dimensions provided are approximate. Colours shown in this catalogue may vary slightly from the actual product due to photographic and colour reproduction. All errors and omissions excepted. Antique and Bronze finishes have variations in tone and colour, this is not a fault but a characteristic of the finish, so finish matches cannot be guaranteed.

Warrington Fire Assessment Report

M. Marcus brass lever furniture has been assessed for use on 30 and 60-minute timber-based fire doors, when fitted in conjunction with a fire, tested latch or lock. (Excludes Low Profile ranges). This assessment considers the fire resistance performance of single-acting timber-based door sets when fitted with M. Marcus handle furniture. Should the recommendations are given in the report be followed the report concludes that previously fire tested (or assessed by Warrington fire) timber door sets which have achieved 30 or 60 minutes integrity in accordance with BS 476 : Part 22 : 1987 or BS EN 1634-1: 2000 as discussed in the report may be fitted with M. Marcus handle furniture as detailed in Annex A, without detracting from the overall integrity performance (and insulation where relevant) of the door set.

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