Sellers fail to widen margins further as the markets slow down for the summer.
European polystyrene (PS) players agree price rollovers from July to August, according to GC Intelligence assessments.
Producers tried to push for increases but by and large buyers refused to accept higher prices, arguing the wide gap with raw materials.
Demand slowed down for the summer in some countries but remained upbeat for the time of the year in most market segments.
The white goods sector showed a healthy level of activity, attributed also to pent up demand.
Meanwhile, the outlook is positive, but downside risks persist on the back of ongoing fears of another wave of infections.
However, prices will unlikely stage a major retreat during the forecast period. The base forecasts continue to point to gradual recovery.