Rotational shear was imposed on two samples of polyethylacrylate rubber with differing types and amounts of gel in order to observe the stress-growth and subsequent quasi-steady state. The deformation rate was low, 0.02 s−1, to avoid slippage at the sample-instrument interface. The stress-growth behavior was represented by a strain-time correspondence of the form given by η+= (σε)αt, where the symbols are the stressing viscosity, η+, shear stress, σ, shear strain, ρ the corresponding extension ratio, α, and time,t. Eventually the growth of strain deviates from that predicted from the linear behavior at a point before the quasi-steady state is reached. The magnitude of shear strain at this point is estimated to be 0.36 to 2.6, depending upon the sample and temperature. Upon continued shearing, this strain memory gradually changes to a level of 0.66 to 1.35. These values were estimated from stress relaxation measurements after cessation of the quasi-steady state. The sample containing about 10% macrogel displayed a higher stress level and a larger magnitude of strain memory; this may be explained on the basis of an extensive entangling of long branches. The other sample, containing 70% microgel, gave a lower stress level and a smaller strain memory. The microgel is a crosslinked particle and less effective in entangling with its neighbors.