Space News
space history and artifacts articles

Messages
space history discussion forums

Sightings
worldwide astronaut appearances

Resources
selected space history documents

  collectSPACE: Messages
  Opinions & Advice
  How to halt Sharpie fading on models?

Post New Topic  Post A Reply
profile | register | preferences | faq | search

next newest topic | next oldest topic
Author Topic:   How to halt Sharpie fading on models?
stsmithva
Member

Posts: 2128
From: Fairfax, VA
Registered: Feb 2007

posted 08-03-2025 09:05 AM     Click Here to See the Profile for stsmithva   Click Here to Email stsmithva     Edit/Delete Message   Reply w/Quote
The astronaut signatures on two of my spacecraft models now show fading. They were signed years ago with black Sharpie on a flat white surface.

It's just starting to get noticeable, and I'd like to halt the fading and prevent any more. I did some research, and a common remedy seems to be a clear acrylic spray. However, because of how smooth the surface is, I am a little reluctant to try that as it might show.

Does anyone have any experience with this? Any suggestions? Thanks!

Axman
Member

Posts: 793
From: Derbyshire UK
Registered: Mar 2023

posted 08-03-2025 10:20 AM     Click Here to See the Profile for Axman   Click Here to Email Axman     Edit/Delete Message   Reply w/Quote
There are two major components to ink fade.

The first, most obvious, and the most serious is light fade caused by sunlight, especially UV light. The only way to control this is by removing the object from light sources - i.e. keep it in the dark as much as possible.

Applying a clear acrylic surface on top will not help as the light penetrates the acrylic layer quite easily. Keeping the object behind museum quality glass is a better way.

A secondary cause is atmospheric degradation, whereby such things as moisture, ozone or airborne pollution affects the ink. The best remedy for this is to isolate the object in a neutral atmosphere such as a nitrogen rich cabinet. Applying acrylic to the surface may help in the short term (in the order of years), but in the long term (in the order of decades), the acrylic is also attacked and creates a far more unsightly mess than the fading ever would.

I strongly suggest not applying any permanent covering such as an acrylic spray. Instead, I strongly recommend keeping the models behind UV resistant glass out of direct sunlight in a controlled A/C cabinet.

All times are CT (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | The Source for Space History & Artifacts

Copyright 1999-2025 collectSPACE. All rights reserved.


Ultimate Bulletin Board 5.47a





advertisement