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#Vallum spine how to
#Vallum spine skin

#Vallum spine how to

You can also use clean water to lift off the paint already applied - and get back to a clean surface! See the video below for a practical example of Shevaun Doherty demonstrating how to do this.It's relatively easy to erase on Kelmscott because you can scrape the surface back to produce a clean surface.lifting off areas of colour with a brush and water to create highlights - however this works extremely well if you want to erase a whole area of paint back to the skin..

Painting techniques which do NOT work on vellum include: MINIMISE the use of water as this causes the vellum to cockle and lifts any paint already on the surface.Vellum is not porous like paper - so water (and paint) sits on top of the vellum.You need to practice colours on a seperate piece of vellum to get the right mix and effect. Many people talk about the colours "glowing". Colours can glow on vellum and appear much more saturated than when the same paint is used on watercolour paper.Just a light rub with pumice and chalk and its ready to go.įrom her comment in response to a query on Blackberries on Natural and Kelmscott Vellum Anyhow I've mounted quite a few pieces now and it works a treat if I'm not too ambitious with the size. I think from being slightly too damp causing shrinkage.

To my surprise it was perfect but a very slight curve which is minor. I let it dry off and put tracing paper over the surface and pressed it under many botanical books.for good luck! and left it for about a week. Ideally you need about an inch spare all round for this. The board has a very slight key on the surface which helps - you cant detect it through the vellum once it's mounted. I wrapped the vellum very tight around the edges. I think it's the aquaboard ( conservation quality ).

#Vallum spine skin

I made up the rabbit skin glue in advance so that it was cooling and pasted the back of the skin before laying it onto the ampersand. Then dried it off so it wasn't dripping wet, more damp. This is not a surface for tropical climates unless kept at all times in a controlled environment.ĭianne Sutherland discusses below how to remount vellum from a mounting disaster! I soaked (the vellum) in warm (not hot) water, say 5 minutes or just long enough to take the ripples out and wash of the glue off from the previous disaster.

Relative humidities above 40% increase gelation and opportunities for biological growth i.e.

significant dimensional changes may occur in vellum bindings exposed to wide fluctuations in relative humidity, such as 25% and 60% Relative Humidity.

This means any paint or ink applied to the surface may become detached.

if vellum is kept in a very dry environment (less than 11%), the skin will start to shrink (unevenly) and become fragile and brittle.

About 25% RH is the lowest level that can be tolerated without inducing large stresses in the material.

This can mean painting in places where you can control the relative level of humidity.

It is also VERY sensitive to environmental humidity levels.

It needs a temperature which is fairly warm and constant.

Sources: Vallum Corporation, SEC.gov, vallumcorp. Per SEC filing Form D, the company raised just over US $6MM in equity financing at the end of 2017. Vallum management believes that its technology and processing protocols can be developed to improve other orthopaedic devices. The entire manufacturing process prior to ANAB processing is identical to the predicate device. Per the company's website, the ANAB processor is an additional manufacturing step for the device and is performed last. This nanotexturing technology may be applied to any fully-manufactured PEEK interbody device without altering its design or size, and without affecting mechanical or chemical properties. PEEKplus is not a coating, is not porous and no chemicals are infused into the PEEK. In the PEEKplus process, nanoscale concavities of 20 to 50 nanometers are created by the impact of argon atoms across the entire microsurface of the PEEK. This reportedly represents the first FDA-cleared nanotextured surface on a PEEK interbody. Vallum received FDA 510(k) clearance to market a polyetheretherketone (PEEK) interbody fusion device with a PEEKplus® nanotextured surface created with proprietary Accelerated Neutral Atom Beam (ANAB) technology.