No. Under the 1875 Explosives Act, is is illegal to manufacture any form of solid rocket motor propellant on unlicenced premises. This means that unless you run a rocket motor factory or fireworks factory, and comply with all the Health and Safety Executive guidelines, then any act of manufacture is illegal.

Any solid rocket motor propellant manufactured in houses, sheds, gardens etc, is illegal, and can result in serious consequences with both the Police and the Health and Safety Executive. We would strongly advise against any form of solid rocket motor propellant manufacture.