Several sintering aids were tested to lower the CaZrO3 ceramic sintering temperature. Numerous additions are shown to lower the densification temperature and to promote the dielectric properties with a QF product, an insulating resistivity and a permittivity enhancement, and a lowering of the temperature coefficient tau(epsilon). A combination of dopants was tested and optimised, resulting in a low temperature sintering ceramic based on CaZrO3, LiNO3, SiO2 and TiO2. The samples sintered at 1000degreesC in oxidising or reducing atmosphere exhibit very attractive properties, with a QF product of nearly 15, epsilon similar to 28, a near zero tau(epsilon) and rho(i) similar to 10(12) Omega . cm. The sintering mechanisms of this ceramic are also debated. (C) 2004 Kluwer Academic Publishers.