Another factor in selecting the aggregate is the cost of the material. Consider the desired life of the seal coat before deciding on the type and classification of aggregate. If the road is to be reconstructed/resurfaced in the near future or if the seal coat is to be applied as an underseal for a hot mix asphalt concrete (HMAC) overlay, higher quality/more expensive aggregate may not be necessary.

Some aggregates may not be available from local sources and will be more expensive due to transport costs. Aggregates such as lightweight aggregates and limestone may be more desirable due to certain qualities; but these aggregates may not be available from local sources.