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Derwent General Product FAQs

Interested in trying Derwent products but you have some questions? Read our general product FAQs below to find out more information on these amazing products. 

  

  • What is the best way to sharpen my Derwent products?
  • What gives a pencil its texture?
  • What is lightfastness?
  • What's the difference between the graphite degrees?
  • How are degrees made and controlled?
  • I am having issues with my Derwent Paint Pen, what can I do?
  • Is the Inktense range permanent?
  • My pastel pencil won’t sharpen, it keeps breaking.
  • How can we identify when a particular batch of pencils was made?
  • Are Derwent pencils non-toxic?
What is the best way to sharpen my Derwent products? Chevron Icon

We have created a handy sharpening guide to give you some tips on how best to sharpen your pencils. View our Sharpening Guide here.

What gives a pencil its texture? Chevron Icon

All the ingredients play a part. High levels of pigment will tend to make a pencil hard. The amount and type of wax will define how it interacts with the paper.

What is lightfastness? Chevron Icon

A measure of how quickly something will change when exposed to UV light (sunlight). Light can cause colour to whiten, darken, fade or completely disappear. Lightfastness refers to the chemical stability of a pigment under long exposure to light. Our colours are rated on a scale of 1 to 8, the higher the number the better lightfast rating it has, so a colour with a rating of 8 will react more slowly when exposed to light. Find out more about lightfastness testing here

What's the difference between the graphite degrees? Chevron Icon

B stands for BLACK and H stands for HARD. 9B is very soft & black and 9H is very hard & pale in shade. HB is half way between the two. F degree was made (stands for FINE) for doing shorthand in the days before computers!

How are degrees made and controlled? Chevron Icon

By varying the proportions of clay and graphite. More graphite means a softer, blacker degree. More clay means a harder degree. HB has 50:50 clay and graphite.

I am having issues with my Derwent Paint Pen, what can I do? Chevron Icon

We have put together this handy complete guide to give you some tips on how to use and clean your Paint Pens so they should work correctly. View the Paint Pen guide here.

Is the Inktense range permanent? Chevron Icon

Yes, the Inktense pencils and blocks, once the pigment is dissolved fully in water, become permanent when dry. You can then work on top of this layer. The colour is vibrant and like an ink.

My pastel pencil won’t sharpen, it keeps breaking. Chevron Icon

Pastels are more delicate than normal pencils so they need to be handled with care during sharpening. Also the materials used to make pastel pencils are more abrasive than the materials in other pencils so the blades in sharpeners and craft knives will blunt more quickly. We recommend using a craft knife or special pastel sharpener and replacing them regularly to keep the blades sharp. For more tips, view our sharpening guide.

How can we identify when a particular batch of pencils was made? Chevron Icon

Each batch has a date code stamped on next to the imprint. This identifies the week that batch was made. From that we can trace the exact details of when the pencils were manufactured: the day, the operator, the machine etc.

Are Derwent pencils non-toxic? Chevron Icon
Yes, all of our pencils are non-toxic. Please view our safety data sheets for more information

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