Covid-19 and climbers’ chalk

Chalky hands
Frictionlabs chalk, available from The Castle Shop

In the spring, as climbing centres closed in line with the initial lockdown, rumours abounded that climbers’ chalk could be a source of transmitting particles of the virus, fomites, to use the jargon.

However, more recent research would suggest that these early fears were misguided. Investigations by a team at De Montfort University suggests that, on the contrary, chalk may actually help to prevent transmission. A statement has been issued by the Association of British Climbing Walls (ABC):

A model coronavirus for SARS-CoV-2, human coronavirus OC43, was used for the experiments. The presence of infectious virus on a plastic surface dusted with chalk was monitored over the course of one hour. The results indicated that the amount of infectious virus was reduced by around 99% immediately upon contact with the chalky surfaces. By comparison, the control test where no chalk dust was present, showed only a slight decline in infectious virus over these time periods.

Read the ABC press release

What about liquid chalk?

Traditional liquid climbing chalk chalk contains less than 70% alcohol, so it is below the minimum level required to kill Coronavirus. New forms of liquid chalk have a higher percentage, but the latest research suggests that it is no more effective. A chemist charged to investigate the issue concluded that:

[Liquid chalk] is completely ineffective in killing any potential viruses on the climber’s hands, and more importantly, on the holds on the wall.

Read the full report on liquid chalk and Covid-19

Conclusion…

While powder chalk may help to limit transmission, it is important to stick to the three things that we know to be effective:

  • Wash your hands frequently with soap and water, or alcohol-based gel for at least 20 seconds
  • Wear a mask (over your mouth and nose) wherever and whenever possible
  • Maintain social distance

London moves to Tier 2

Level of infections in London, October 2020

As of Saturday 17 October 2020, London is to be moved from Tier 1 into Tier 2, a response to the recent rise in infections in the capital. Parents of children who climb with our regular kids’ club and prospective customers may be concerned at the impact of the myriad new rules and guidelines. However, for the moment, we can continue to provide climbing activities to children and young people.

The stipulations, as they appear on the government’s website, are as follows:

In line with guidelines from national sporting bodies, you can take part in sport and physical activity outdoors.
Organised indoor exercise classes are only permitted if it is possible for people to avoid mixing in with people you do not live with or share a support bubble with. There are exceptions to enable disability and youth sport and physical activity indoors, in any number.

If you would like to know more, the Association of British Climbing Walls has a FAQ page.

Obviously, to minimise the risk to the children in our care and to our staff, we will continue to follow The Castle’s social distancing and hygiene policies set out in an earlier blogpost.